re still very cautious about ________side effect the new medicine will bring about, although the experts have triedit on about 2000 patients．

The number of traffic accidents caused by drunk driving is _______ as the number of those caused by other reasons

rogram can give you a lift at work, ____increase your income by 50%.

is everything going on with you in the UK — Quite well. Not so smoothly as I hoped,_____.

We pursue happiness，thinking one day we will find itBut_________it by seeking it