Xe thứ hai chở được số kilogam hàng là:

$687-48=639\left(kg\right)$

Xe thứ ba chở được số kilogam hàng là:

$\left(687+639\right):2=663\left(kg\right)$

Trung bình mỗi xe chở được số kilogam hàng là:

$\left(687+639+663\right):3=663\left(kg\right)$

$cho\; mình\; 1\; xu\; nhé$

Tất cả các từ đều có nghĩa là đá. (á bạn.)

- stone, rock:cục đá ngoài đường

- kick: động từ đá

- ice: cục đá(đá uống nước.

xong rồi nhé!

232=259

2132=45369

=> 259+45369=45628

36. Whose car is this, Mary’s or Tom’s ?

37. You should protect the environment and wild animals. 

38. Students are waiting for the bus stop ________ ( now, at a moment, at a present , yesterday)

39. They are watching a film on TV ______ ( now , at present, at the moment , all are correct )

40. candies at night. /  too many / Children / shouldn’t / eat

Children shouldn't eat too many candies at night

41. watching / cartoons / after school. / enjoys / Clara

Clara enjoys watching cartoons after school

42. Don’t  throw wastes in the street.

43. Your mother’s sister is your aunt.

44. It’s __________ and it snows in winter. ( sunny, windy, cool, cold)

45. The monkey is _____ the car .( near, under, next to , on)

46. at the meeting / won’t / be / tomorrow. / Mr Smith

Mr Smith won't be at the meeting tomorrow

48. Don’t eat too many ice- cream before going to bed.

49. Which sentence is correct ?

      A. What weather do you like ?                           B. What’s weather do you like?

      C. What is weather you like?                              D. What the weather are you like?

50. Visitors / 10 p.m. / can’t stay in / the hospital / after

visitors can't stay in the hospital after 10 p.m