Professor Smith and Professor Brown will _____ in giving the class lectures.

The students busily when Miss Brown went to get the book she in the office

Thefellowhasbeensuspected________ane­mailfraud. —Nowadayscybercrimeisdeveloping________anamazingrate. [ ]

2He climbed silently ________ of seizing the thief ________

How are you getting on with your English—I’m _______ in listening than ever before.