____ I met Nelson Mandela was a very difficult period of my life.
| A．The first time | B．The first time when |
| C．For the first time | D．That was the first time |
－Isn’t that Ann’s husband over there?
－No, it be him. I’m sure he doesn’t wear glasses.
| A．can’t | B．must not | C．won’t | D．may not |
His words reminded me a woman had told me before.
| A．that | B．of which | C．what | D．of what |
He _______ his gun under the tree where he was __________.
| A．lay; laying | B．laid; lying | C．lied; laying | D．lay; lying |
_______he has got a chance, he might as well make full use of it.
| A．Now that | B．Although | C．As soon as | D．After |
That art center is _______ used to be a factory, ______ millions of tractors were produced.
| A．what; where | B．where; where | C．what; which | D．where; which |