问题

He a director since he graduated from university in 1962.
A:became
B:has become
C:has been
D:becomes;
B:has become
C:has been
D:becomes;
正确答案是:
同类题型
I’ve prepared all kinds of food for the picnic.—Do you mean we_____ bring anything with us?
It’s a good chance to buy things because many things are on sale at aprice.
It’s a good idea. But who’s going to _____ the plan? — I think Tom and Mike will.
1. We had so much homework. I didn’t go to bed Ifinished it yesterday evening.