--- We are too busy to take____ holiday at present.--- But I think we’ll be able to take___ two weeks away.A the, the B a, one C a, it D the, one
The old man __________ in Tibet for two years as a volunteer teacher;it is an experience he often mentions.
Qian Xuesen tried many times _________ he found the solution to the puzzle about space technology.
Thosethe exam cheat mustanother exam tomorrow afternoon.
He admitteda lie in order to avoid.
I your success although you are in difficulty now.