【推荐1】Unless___________(invite) to speak, you should remain silent at the conference.

【推荐2】It is a great honour for me ________ to address this international AI conference.(invite) (所给词的适当形式填空)

【推荐3】This is the first time that I____________(invite) to London. (所给词的适当形式填空)

【推荐1】Stephon Marbury ________ (honour) to live permanentlyin China. (所给词的适当形式填空）

【推荐2】Every Christmas, an envelope with a North Pole stamp arrived, which ________(address) to Tolkien’s children. （所给词的适当形式填空）

【推荐3】Verb filling
1. I first met Tom 10 years ago. He______ (work) in a radio factory at that time.
2. According to the timetable, the aeroplane ______ (leave) at 8 o'clock in the morning.
3. —What’s that noise?
—Oh, I forgot to tell you. The new machine ______ (test).
4. Great changes ______ (take place) in my hometown in the past few years.
5. He stepped into the office, ______ (sit) down and began to fill in the forms.
6. He kept looking at her, wondering whether he ______ (see) her somewhere.
7. He promised he ______ (not make) the same mistake again.
8. This is the first time that he ______ (visit) the museum.
9. Remember to send me a photo of us next time you ________ (write) to me.
10. I know Mr Brown. We ________ (introduce) to each other at an international meeting.

【推荐1】About 80% of the money   ________ (waste) already for no reasons. (所给词的适当形式填空)

【推荐2】Every possible means ______________(try), but we still cannot solve the problem.

【推荐3】The number of people present at this meeting now___________（be）300，a number of whom___________（be）journalists. （所给词的适当形式填空）