He found it increasingly difficult to read, ______ his eyesight was beginning to fail.

Water, food and air are the ___________ needs for life.

Last month, our English Department invited a local radio star to _____a public lecture on the topic of mediainfluence on society. [ ]

Whenfirst to his new classmates,the little boy felt shy and said nothing.

We were very busy yesterdayOtherwise we _____part in the discussion