— 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
Soon you _______ a senior high school student(高中生). Isn’t it exciting?
#37164
A
become
B
will become
C
became
D
have become
–What food did you ________ just now? --Beef noodles, but it hasn’t arrived yet.
#42527
A
cook
B
eat
C
have
D
order
---What ____________ you _____________ last weekend?---I wrote some letters and read a book.
#39243
A
do, do
B
did, do
C
will, do
D
have, done