—What did your parents think about your decision?—They always let me do __________ I think I should.
| A．when | B．that | C．how | D．what |
We shouldn’t spent our money testing so many people, most of ___ __ are healthy.
| A．that | B．which |
| C．what | D．whom |
Last week, only two people came to look at the house, ___ ___ wanted to buy it.
| A．none of them | B．both of them |
| C．none of whom | D．neither of whom |
Mr. Reed made up his mind to devote all he had to ________ some schools for poor children.
| A．set up | B．setting up |
| C．have set up | D．having set up |
Go on ________ the other exercise after you have finished this one.
| A．to do | B．doing |
| C．with | D．to be doing |
She reached the top of the hill and stopped ________ on a big rock by the side of the path.
| A．to have rested | B．resting |
| C．to rest | D．rest |