用所给词的适当形式填空 小题1:His mother made him __________( clean ) all the rooms in two hours. 小题2:A good _______________( begin ) makes half success(成功). 小题3:Do you know the ________(high)of Yao Ming? 小题4:Summer may be the _____________ (good) time to swim in the river . 小题5:She writes_______(careful)enough. 小题6:Could you tell me how ______(get) to the hospital? 小题7:We spent a lot of time _____(do)our homework last night.