Sử dụng đúng thì của động từ trong ngoặc đơn để hoàn thành câu:
1. We (have)... english lessons on tuesday and friday.
2. Where is Phong?
I think he (read)... in the library.
3. Chau usually (listen)... to the teacher in class, but she is not listening now; she (look)... out of the window.
4. If the pupils do well at school, they (receive)... scholarships.
5. Who(play)... music upstairs? It is really noisy .
6. It (start)... raining on our way home, but luckily i had my umbrella in my bag.
7. I wasn't sure of the answer, so i (guess)... and i (be)... right!
8. I (do)... my exercise now, but i can come and help you later.
Giúp mình nha, thank you các bạn nhìu nha!!!
???
145+23=168
Giải giúp mình nha:
1. Tính hợp lí:
1, 3. (-4 )2 + 2. (-5 ) -20
2, 31 - [26 - (209 + 35) ]
3, 231 + 26 - (209 + 26)
4, 19. 25 + 9. 95 + 19. 30
5, (-50 + 19 + 143) - (-79 + 25 +48)
6, 160 : {|-17 | + [ 32. 5 - (14 + 211 : 28)]}
7, |-6| + (-7) + | -4 | + ( -3 )
8, 23 . 5 - 32 . 4 + 4. 6
9, 56 : 53 - 50 . 51 . 52
10, 16. (38 - 2) - 38.(16 - 1)
Xin cảm ơn !!!
Giải giúp mình nha:
1. Tính hợp lí:
1, 3. (-4 )2 + 2. (-5 ) -20 2, 31 - [26 - (209 + 35) ]
3, 231 + 26 - (209 + 26) 4, 19. 25 + 9. 95 + 19. 30
5, (-50 + 19 + 143) - (-79 + 25 +48) 6, 160 : {|-17 | + [ 32. 5 - (14 + 211 : 28)]}
7, |-6| + (-7) + | -4 | + ( -3 ) 8, 23 . 5 - 32 . 4 + 4. 6
9, 56 : 53 - 50 . 51 . 52 10, 16. (38 - 2) - 38.(16 - 1)
Xin cảm ơn !!!