The man ______ gave us a talk on science yesterday isa famous scientist.

You’d better not(最好不) read today’s newspaper because there is _____ in it.

When something _______you, I will always help you, so don’t _______it.

It was with great joy the couple found their missing son after 18 years.

knew he failed in the final exam the moment I ______ him crying alone in the classroom.[ ]