Only when you told me about it ________ what a silly thing I had done.
| A．I realized | B．did I realize | C．I did realize | D．did I realized |
I have told you the truth. ______ I keep repeating it?
A Must B Can C May D Will
Can you think of some cases ________ people can communicate only by means of body language?
| A．that | B．which | C．where | D．when |
A great number of students said they were forced to practise the piano.
| A．to question | B．to be questioned |
| C．questioned | D．questioning |
I like _____ in spring when everything turns green and active.
| A．one | B．it | C．that | D．this |
You can imagine what difficulty we had __________ home in the snowstorm.
| A．walked | B．walking | C．to walk | D．walk |