---What’s wrong with you, Mr. Keller?
--- I’ve had a very bad headache for two days. At first, I ______ I caught a cold, but the medicine ______.
| A．thought, hasn’t worked | B．had thought, didn’t work |
| C．thought, hadn’t worked | D．have thought, hasn’t worked |
We liked the oil painting better____________ we looked at it.
| A．as | B．while | C．the | D．the more |
We must keep our room clean. Dirt and disease go , you know.
| A．from time to time | B．hand in hand |
| C．step by step | D．one after another |
-Could I use your bike, Jack?
--Of course, you____________.
| A．can | B．may | C．could | D．might |
Helen is much more kind to her youngest child than to the others,___________ of course, make the others unhappy.
| A．who | B．which | C．she | D．that |
--____________?
--He is tall and strong.
| A．What do you think of your monitor | B．How about your monitor |
| C．What is your monitor like | D．How do you find your monitor |