Nowadays, many women, ________some are not overweight at all, are always going on diets or taking weight-loss pills, ________ are often dangerous.

28．The university with two____campuses hasa student population of 50,000 in total．

It is strange that such a thing ______ in yourschool

The first one ______ will get a beautifulgift.

Must I return the book this week? No,you______. You can ______ it for 20 days.