一、单项选择 从下列各题四个选项中选择一个最佳答案( 共15小题;每小题l分,满分15分)
( ) 1. Yang Xiangming, ________teacher of Taizhou Experimental School, devoted
his life to saving_______13-year-old boy who fell into water.
A. a, an B. the, a C. a, a D. the, the
( ) 2. _________ fantastic time they had playing hide-and-seek in the park!
A. How B. What C. How a D. What a
( ) 3. ---Has Jack finished painting the picture yet?
--- I’ve no idea. But he______ it the whole afternoon.
A. was painting B. painted C. had painted D. have painted
( ) 4. --- a month do you do voluntary work ?
---Twice a month.
A .How long B. How many times
C. How much D. How often