5.9 Lots of rescue workers were working around the clock,()supplies to Yushu, Qinghai province after the earthquake.

A. 　 when

B. 　 who

C. 　 why

D. 　 what

A. 　 different

B. 　 strict

C. 　 lonely

D. 　 important

A. 　hospitals

B. 　 factories

C. 　 schools

D. 　 armies

A. 　 the best

B. 　 better

C. 　 the better

D. 　 much better

A. 　 aiming

B. 　 looking

C. 　 waving

D. 　 pointing

A. 　difficult

B. 　 expensive

C. 　 beautiful

D. 　 familiar

A. 　 what

B. 　 which

C. 　 why

D. 　 when

A. 　 since

B. 　 when

C. 　 as

D. 　 while

A. 　 reusing

B. 　 reused

C. 　 reuses

D. 　 to be reused

A. 　 To have changed

B. 　 Change

C. 　 Changing

D. 　 Being changed