I think no bed here is big enough for him______.
| A．sleeping in | B．sleeping |
| C．to sleep | D．to sleep on |
––_______ have you been a volunteer?
––Since three years ago.
| A．How long | B．When | C．How often | D．What |
He has been collecting coins _______ he was seven years old.
| A．because | B．while | C．when | D．since |
She is usually _______. Why did she get ill so suddenly?
| A．in style | B．out of style | C．in good health | D．in time |
Because of Project Hope (希望工程), _______ children have better lives.
| A．thousand | B．thousand of | C．thousands of | D．two thousands |
––Has your brother ever been to the Sand Lake?
––Yes, he has _______ the Sand Lake many times.
| A．been to | B．gone to | C．go to | D．went |