I recognized him _______ I saw him, though we had been apart for over a decade.
| A．as soon | B．at once | C．the instant | D．the first time |
Only when the war was over______ to his hometown.
A. did the young soldier return B the young soldier returned
C. returned the young soldierD the young soldier return
—Did the book give the information you needed ?
—Yes. But _____it, I had to read the entire book.
| A．to find | B．find | C．to finding | D．finding |
_____the soap operas, she got down to finishing her homework.
| A．Watching | B．watch | C．Watched | D．Having watched |
I’m afraid Mr. Harding ______see you now. He’s busy.
| A．can’t | B．mustn’t | C．shouldn’t | D．needn’t |
The old man has four sons, and two _____ turned doctors．
| A．of which | B．of whom | C．of them | D．of that |