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TNNgocTuyen
2 năm trước
Giúp em với ạ , hôm nay hạn chót nộp btvn r ạ Lưu ý : x= cos(20$\pi$t - 2$\pi$ /3)
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Bài tập: Điền giới từ thích hợp vào chỗ trống 1. Elizabeth is fond .......... going to dances. ( in , of , with , at ) 2. I shall wait .......... you. ( about , by , to , for ) 3. He is looking .......... his glasses. ( after. for , into , by ) 4. He is very kind ......................me. (to, of, with, for ) 5. They have been waiting ............... the bus for half an hour. (to, of, with, for ) 6. Ann looked.............. the mirror and admired her new blouse. ( in, at, on, into ) 7. I’m bad ............. math. ( at , on, in, with ) 8. Are you afraid ................. them? ( at , on, in, of ) 9. They are interested.....................Music. ( at , on, in, of ) 10. I will take part ....................... your team. ( at , on, in, of ) 11. They are looking……. The sky. 12. I don’t go out, because I have to look………. my little sister. 13. I am interested ………speaking skill. 14. They are waiting ………….. their parents come back home. 15. Mr Tony is nice………. Them. 16. Lan is putting………. her hat. 17. My father is looking……….. something in his room. 18. Quang Hai is famous ………….playing football. 19. Hoa is nervous ………..her speaking test’ 20.There is a picture ……… the wall.

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