When I lived with my roommates in the university, we ________ often talk into the night.
| A．might | B．could |
| C．should | D．would |
____________ scientists will be invited to take part in this space flight.
| A．Two strong young Chinese | B．Two Chinese strong young |
| C．Chinese two young strong | D．Young strong two Chinese |
The old teacher lay wide awake on his bed, ___________ all the problems he had to deal with the next day.
| A．thought about | B．to think about | C．thinking about | D．having thought about |
I am one of the students who _________ English well in my class but he is the only one of us __________ maths well.
| A．studies; learns | B．study; learns | C．study; learn | D．studies; learn |
—I had been working till 4 a. m. to prepare a report for my boss.
—____________you look very tired.
| A．No doubt | B．No hurry | C．No wonder | D．No need |
The USA and some other countries helped the rebels in Libya ____________ their promise to support democracy (民主) and fair trade.
| A．in danger of | B．in memory of | C．in peace for | D．in return for |