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.