Tính giá trị biểu thức
a) 2/3x^2+3x^2y +x^2y tại x=3, y =-1/7
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Số lượng câu hỏi
3
Số lượng câu trả lời
1
Điểm GP
0
Điểm SP
1
Người theo dõi (0)
Đang theo dõi (0)
Câu trả lời:
còn lại 5 cái
Chủ đề:
Unit 16: Man’s environmentCâu hỏi:
1. Lola _________ run better last year.
A. can B. could C. will be able to
2. They _________ train in the gym in two days.
A. can B. could C. will be able to 3.We _________ talk about it for a long time.
A. can B. could C. will be able to
4. Do you think we _________ park over here?
A. can B. could C. will be able to
5. _________ you taste the garlic in this stew?
A. Can B. Could C. Will be able to
6. _________ you understand what he said?
A. can B. could C. will be able to
7. I don’t think he _________ win the next competition.
A. can B. could C. will be able to
8.Lena wasn’t in the office, so I__________contact her.
A. am not able to B. couldn’t C. can’t D. won’t be able to
9.Henry broke his legs, so he__________walk properly.
A. can’t B. couldn’t C. won’t be able to D. isn’t able to
10.Next year, my son__________walk himself.
A. could B. can C. will be able to D. can’t
11. The door was locked, so I__________open it.
A. couldn’t B. could C. can D. can’t
12. in the future, robots __________make a conversation with humans.
A. can be able to B. can C. could D. will be able to
13. What __________ robots__________in the future?
A. will - be able to do B. can - do C. could - do D. cannot – do
14. My brother__________ play the guitar very well now.
A. could B. will be able to C. can D. couldn’
15. My grandpa__________ swim very well when he was young.
A. must B. could C. will D. can
16. Yesterday, this laptop__________connect to the printer wirelessly, but after the update, now it___________.
A. couldn’t - can B. can’t - couldn’t C. couldn’t - could D. can’t – can
17. Lola _________ run better last year.
A. can B. could C. will be able to
18. They _________ train in the gym in two days.
A. can B. could C. will be able to
19. We _________ talk about it for a long time.
A. can B. could C. will be able to
20. Do you think we _________ park over here?
A. can B. could C. will be able to
21. _________ you taste the garlic in this stew?
A. Can B. Could C. Will be able to
22. _________ you understand what he said?
A. can B. could C. will be able to
23. I don’t think he _________ win the next competition.
A. can B. could C. will be able to
24.Lena wasn’t in the office, so I__________contact her.
A. am not able to B. couldn’t C. can’t D. won’t be able to
25.Henry broke his legs, so he__________walk properly.
A. can’t B. couldn’t C. won’t be able to D. isn’t able to
26.Next year, my son__________walk himself.
A. could B. can C. will be able to D. can’t
27. The door was locked, so I__________open it.
A. couldn’t B. could C. can D. can’t
28. in the future, robots __________make a conversation with humans.
A. can be able to B. can C. could D. will be able to
29. What __________ robots__________in the future?
A. will - be able to do B. can - do C. could - do D. cannot – do
30. My brother__________ play the guitar very well now.
A. could B. will be able to C. can D. couldn’
31. My grandpa__________ swim very well when he was young.
A. must B. could C. will D. can
32. Yesterday, this laptop__________connect to the printer wirelessly, but after the update, now it___________.
A. couldn’t - can B. can’t - couldn’t C. couldn’t - could D. can’t – can