Only after my friend came ___________________________.
#81331
A
did the computer repair
B
he repaired the computer
C
was the computer repaired
D
the computer was repaired
推荐题目
 The experiment shows that proper amounts of exercise, if _______ regularly, can improve our health.
#80275
A
being carried out
B
carried out
C
carrying out
D
to carry out
—How much do you know about the 3D film technology?—A little. Not until _______the hot movie Avatar _______ some about it.
#82709
A
did I see; did I begin to learn
B
I saw; I began to learn
C
I saw; did I begin to learn
D
did I see; I began to learn
Only by imagining and creating ____the problem.
#83018
A
can solve
B
you can solve
C
solve
D
can you solve