1.     Put the verbs in brackets in the correct form.

1.     Thanks to the development of technology, computers (become)       smaller and smaller.

2.     One of the most intriguing questions astronomers and scientists hope (answer) ____________________  one day is whether life exists on other planets.

3.     It is certain that robots (improve)      the quality of our lives.

4.     The Earth seems too small (accommodate___________________________ the increasing population.

5.     Scientists believe that Mars also (experience)     seasons just as the Earth does.

6.     She was cooking dinner when the guests (arrive)      .

7.     He said that he (go) ____________________________  to the beach the next weekend.

8.     They planned (keep) ___________________________  in touch with each

other by using emails.

9.     There is a lot of interest in (do) ___________________________

experiments in the conditions.

10.    We should not (use) ___________________________ our smartphones for more than a few hours every day

A.     Circle the letter A, B, C, or D to indicate the correct answer to each of the following questions.

1.    As soon as Peter _____________  enough information about the protection of endangered species, he will start doing his wildlife project.

A. gathering          B. gathered            C. gathers               D. gather

2.     Before the big sale started, Nancy ___________ a shopping list carefully.

A. made                B. makes               C. making              D. make

3.     The museum is ___________ to the art gallery.

A. behind              B. opposite            C. near                   D. next

4.     We will travel to Da Nang _________  we have finished the project.
A. until       B. while                       C. after        D. before

5.     Should we recycle __________ products?

A. unused              B. unuse                C. use                    D. unusing

6.     Seven Eleven is the most popular _______________ store in Thailand.

A. inconvenience    B. inconvenient       C. convenience      D. convenient

7.     What did you do after you __________ around the boutiques?

A. browsed            B. browse              C. will browse       D. browsing

8.     It’s necessary to prepare an emergency kit before a tropical storm     

A. was breaking     B. broke                    C. breaks               D. break

9.     They own this car. It’s ___________ .

A. hers                  B. theirs                 C. ours                   D. mine

10.    "I'm going to visit my parents." said Susan.

A.     Susan said that she was going to visit her parents.

B.     Susan said that she is going to visit her parents.

C.     Susan said that she was going to visit my parents.
D.  Susan says that she was going to visit her parents

: Read the passage and choose the best answer for each gap. (1,2m)

Mars is called the Red Planet because of its reddish (21)…………….. There have been many explorations to Mars by humans since the mid-20th century. Scientists hope that we can find another planet to (22)…………………… human life.

              There are major reasons why the (23)……….. on Mars is unsuitable for human life. Temperatures on Mars can be as low as -87 degrees Celsius and rarely get above 0 degrees Celsius. But the bigger problem is the lack of oxygen. 95% of the atmosphere is carbon dioxide (CO2), and this is (24)………….. to breathe. Moreover, there is no water on Mars even though scientists have found traces of it. Reason why we are be able to live on Mars.  (25)…………; as early as the mid-19th century, (26) ………… discovered that Mars had some similarities to Earth. A day on Mars is 24 hours, 39 minutes and 35 seconds, almost the same as a day on Earth. Mars also experiences seasons just as Earth does. However, the seasons are twice as long because a year on Mars lasts about twice as long as an Earth year.

21.         A. surface                             B. land                       C. ground                 D. body
22.         A. to accommodate                        B. accommodation   C. accommodate      D.accommodations

23.         A water                                 B. climate                   C. oxygen                  D. food

24.         A. poison                               B. poisoning              C. to poison               D. poisonous

25.         A. However                         B. Because                 C. Although             D. So

26. A. doctors                                     B. scientists              C. engineers           D. professors