If you _________ smoke, please go outside.
It is said in Australia there is more land than the government knows______.
The mother didn't know ______ to blame for the broken glass as it happened while she was out . A who B when C how D why
Last summer I took a course on______.
.Let Harry play with your toys as well,Clare you must learn to______. A.support B care C.spare D share
.There are five pairs______, but I’m at a loss which to buy. A.to be chosen B to choose from C . to choose D for choosing