— When _______ you _______ to learn to ride your bike? — I really can’t remember the time.
#41700
A
do; begin
B
did; begin
C
have; begun
D
had; begun
推荐题目
If it _______ tomorrow morning,we’ll go out for a picnic.
#41818
A
won’t rain
B
doesn’t rain
C
isn’t raining
D
isn’t going to rain
He to Dongying many times, so he knows every corner of it.
#42714
A
went
B
will go
C
has gone
D
has been
