三级英语练习题语法练习11. By the summer, Elizabeth_ here for ten years . A. will work B. works C. will have worked D. has worked2. After Jackson._ for an hour, he came to the conclusion that Mrs.bennet was not coming. A. waited B. was waiting C. has waited. D. had been waiting .3. I. hope you_ the instructions ready before I come tomorrow A. to get B. shall
