— 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
The book __ __by the young writer sells well. It is popular among middle school students.
#40015
A
was written
B
writing
C
wrote
D
written
Tony is very nice. He is the most enjoyable person I .
#36545
A
meet ever
B
have ever met
C
had ever met
D
met
—Do you miss your parents far away? —Yes, very much. They _________ the hometown for over two years.
#41563
A
left
B
have left
C
were away from
D
have been away from
–Are you and your parents going to visit friends in Shandong?--Yes, and while we ____ with them, we’re going to spend a few days in Qingdao.
#36937
A
stayed
B
have stayed
C
were staying
D
are staying