In vain______ to get in touch with the authorities.
A: they tried
B: did they try
C: they have tried
D: the had tried
A: they tried
B: did they try
C: they have tried
D: the had tried
B
举一反三
- 17、In vain to get in touch with the Embassy. A: they tried B: tried they C: did they try D: they have tried
- 17、In vain to get in touch with the Embassy. A: A、they tried B: B、tried they C: C、did they try D: D、they have tried
- In vain_______to get in touch with the Embassy. A: did they try B: tried they C: they tried D: they have tried
- In vain ______to open the locked door. A: he tried to B: did he try C: tried he D: he did try
- In vain ______ to convince him. A: I tried B: tried I C: did I try D: was I trying
内容
- 0
（）he here, he（）his best to help you. A: Were...would try B: Were...would have tried C: If...would try D: Had been...would have tried
- 1
I vain _____to open the locked door. A: he tried B: did he try C: he tries D: does he try
- 2
I _____ two hotels but they are both fully booked up. A: have tried B: tried C: try D: will try
- 3
I stayed up all night（）to find a new solution to the problem. A: had tried B: try C: trying D: tried
- 4
I stayed up all night ______ to find a new solution to the problem A: trying B: have tried C: try D: tried