Generally speaking，the Internet makes________possible for people to get the information they need quickly.

It is requested that each of the teachers invitedaperformance at the party.

Have you applied ___________ Mr Black _____________ the post It’s worth a try.

— What are you mailing, Tom? — A textbook ______ a new method of teaching physics I want my friend to take a look at it [ ]

There are 30 __________ in the hospital.