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a:các tia gốc a là :ba ac
các tia gốc b là:ba,bc
các tia trùng nhau:ac và ab,ca và cb
1 a
2 an
3 a
4 the
5 the
6 the
7 the
8 an
B
1 a
2 -
3 a
4 the
5 the
6 the
7 the
8 the
9 the
10 a
C
1 the
2 the
3 the cars => cars
4 a
5 the
6 the
7 a
8 an
chịu bạn văn nghị luận thoy để tối cô lan gợi ý cho bạn làm nha
1. Minh used to ____________his homework late in the evening.
A. does B. do C. doing D. did
2. It is not _____________to pass the red traffic light.
A. dangerous B. safe C. safety D. danger
3. There are many _____________on the street: cars, buses, bikes, motorbikes…
A. vehicles B. transport C. engines D. machines
4. She spent all day _____________with her children.
A. play B. to play C. played D. playing
5. The central square is______________. It is full of people and noise.
A. quiet B. peaceful C. crowded D. calm
6. Your behavior is_______________. You should not be rude.
A. disappointing B. disappointed
C. disappoint D. disappoints
7. If we walk, we should go on the___________.
A. street B. pavement C. traffic light D. road
8. “One-way street”, “No parking” are___________.
A. road signs B. means of transport
C. traffic rules D. mistakes
9. He sings___________. Nobody wants to listen to his voice.
A. bad B. badly C. well D. good
10. He runs ___________than me.
A. more faster B. more fastly C. more fast D. faster
21B
22D