问题
When _______ you _______ to learn to ride your bike？ — I really can’t remember the time.
A:do; begin
B:did; begin
C:have; begun
D:had; begun
B:did; begin
C:have; begun
D:had; begun
正确答案是：
同类题型
Xinghua is ___________ beautiful city. I like it very much.
This task is ______difficult for us. We need ______people.
What color is ________ pencil?—It’s red.
. When the policeman stopped us, we all looked questioningly at him, ?
It’s better to go shopping in the supermarket than ____ home for chat.