In some languages, 100 words make up half of all words __________ in daily conversations.
| A．using | B．to use |
| C．having used | D．used |
Look, what a dirty classroom we have got! It really wants ______.
| A．clean | B．cleaned | C．cleaning | D．to clean |
It is high time, I think, that you got down to ______ something in class.
| A．do | B．did | C．doing | D．does |
I've never seen a Shakespeare's play ______ so wonderfully.
| A．performing | B．performed | C．perform | D．is performing |
Tom's shoes looked just the same as Mike's, but they cost _______ his.
| A．as much twice | B．twice as much as | C．much as twice as | D．as twice much as |
Mother, together with her children , ______ to the hospital.
| A．were sent | B．are sent | C．was sent | D．have been sent |