根据句意，用所给词的适当形式填空： （共10小题，每小题1分，计10分）

小题1:Mary passed her exam because she studied very ___________(hard).

小题2:That’s the ________(enter) to the hall. Please come this way.

小题3:Look! How ________(happy) Kate looks after hearing the bad news! 

小题4:The man in his           (forty) is the person who saved that boy.

小题5:I can’t __________(simple) understand what you said.

小题6:We Chinese people devote much time to __________(help) rebuild Yushu.

小题7:Jim __________( not be) late in the past.

小题8:He’s _________(ever) been to Beijing before, has he?

小题9:All the children should____________(treat) well after the earthquake.

小题10:---What do you think of my advice? ---Sorry. I _______(think) of something else.

救吞服不明毒物中毒者，可予下列哪种泻药（）

A.蓖麻油

B.石蜡油

C.甘露醇

D.肝油

E.硫酸钠