我国人均外汇储备在金砖国家中排在第几位？A.一B.二C.三D.四

- David injured his leg playing football yesterday. - Really？ ______________

A：Who did that？

B：What's wrong with him？

C：How did that happen？

D：Why was he so careless？

--Isn't that Dick playing football？ --It________be．He got his leg broken yesterday．

A.wouldn't

B.mustn't

C.rather not

D.Call’t

--Isn't that Dick playing football？--It ______ be. He got his leg broken yesterday.

A．can't

B．mustn't

C．rather not

D．wouldn't

He got his leg () while he was playing football with a group of friends.

A、broken

B、break

C、breaking

A．broken

B．break

C．to break

D．breaking

(Have yon read) in the Columbia Spectator that (Jiff' s) leg (was broken)(while playing football)？

A．Have yon read

B．Jiff' s

C．was broken

D．while playing football

________ his leg was badly injured, the boy managed to attend class every day.

A. If

B. Unless

C. Although

D. Because

Tom likes to playing _______， while his sister likes to play _______.

A、football; the piano

B、the football; the piano

C、the football; piano

D、football; piano

A、can’t

B、mustn’t

C、wouldn’t

D、needn’t