Whatdoyouthinkofteaching,Bob —Ifinditfunandchallenging.Itisajob___youaredoingsomethingseriousbutinteresting

I have _____ my husband again and again not to smoke, but I can’t _____him.

Lily， ____ of the ______speech, started to read a novel.

What’s the use of this kind of machine-It can make the train fast.

It ________ have been her to leave her child alone and do whatever she wanted. She isn’t such a person.