双基限时练(十七) Unit 9 Grammar 1
Ⅰ.单句语法填空(不多于3个单词)
1．All those years he ________________ (send) flowers to his customers.
答案 has been sending
2．He often ________________ (walk) for half an hour every morning when he was young.
答案 walked
3．I started to collect stamps five years ago. I ________________ (collect) stamps for ten years.
答案 have been collecting
4．He ________________ (walk) down the street this time yesterday.
答案 was walking
5．I have no idea if she ________________ (come) this afternoon. If she ________________ (come), I'll let you know.
