单句语法填空
1．I expect you have_been_working (work) hard for your exams!
2．At least by the time I get back I will_have_read (read) that awfully boring book that my history teacher has_made (make) me read over the holidays.
3．If I had_realised (realise) it was that dangerous I would never have stood so close!
4．He had_been_standing (stand) there for a minute or so when there was a noise.
5．He has_seen (see) the film Let the Bullets Fly twice.
