用代词的适当形式填空 小题1:These books are ____ (she). 小题2:___name is Li Lei. (he) 小题3:Thank ___ very much. (you) 小题4:He is in ____room. (us) 小题5:Are ____ Chinese? (he) 小题6:How old is ___? (her) 小题7:Excuse ____.(I) May I use your ruler? 小题8:This is ____ classroom. (we) 小题9:Can ____ spell it, please? (you)