问题

_______ many times, he finally understood it

A:Taught
B:Teaching
C:Having taught
D:Having been taught

正确答案是：

同类题型

The teacher gave ________ children ________ cakes each to eat for their breakfast.

Excuse me, could you please tell me if the sports meeting _________ on time— It depends. If it ____________ tomorrow, we’ll have to put it off.

Sorry. I didn’t break the plate______.—It’s OK. Don’t worry about it.

makes this shop different is that it offers more personal services.

Our manager bought a ________ car.