The boy found______hard to get along with the other classmates.

  A.this                   B.that                 C.it

Let’s search the Internet for some information about famous people,______?

  A.will you               B.won’t you           C.shall we

_____the afternoon of April 30th,many foreign visitors arrived___Shanghai.

  A.In;at                  B.On;in                C.On;to

You______be tired after playing sports for a long time without a rest.

  A.must                   B.need                 C.can’t

They preferred_____ rather than_____a bike.

  A.to walk; to ride       B.walking;riding       C.to walk;ride

In our school libray,there____a number of books on science and the number of them_____growing larger and larger.

  A.is;are                 B.are;is               C.have;is

Several days has passed_______the air crash（空難） happened.

  A.since                  B.after                C.as

My e-mail______to you last night.　Have you received it____?

  A.sent;yet               B.is sent;already      C.was sent;yet

— ____can we board our plane? — In twenty minutes.

  A.How soon               B.How long             C.How often

— Would you mind my taking this seat? — ______.

  A.Sorry, I can’t        B.No,not at all        C.It’s a pleasure