— 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
—— What __________ he do?    —— He __________ an actor.
#41499
A
is, is
B
does, does
C
does, is
D
is, does
Fish ________ without (没有)water .
#42450
A
dies
B
is dying
C
won’t die
D
will die
Listen! The phone ___. Please go to answer it.
#42252
A
rings
B
is ringing
C
rang
D
will ring