Ⅰ.单句语法填空
1．It is recommended that the picnic (should)be cancelled (cancel)because of the bad weather.
2．This is the second time that he has been sent (send)into space.
3．Organizers are making final preparations(prepare)for next week's 50th anniversary of our company.
4．I know I haven't done enough revision (revise)for tomorrow's exam.
5．Though he has never done this type of work before，I'm sure he'll fit in well here.
6．Being able to afford a drink would be a comfort in those tough times.
7．His requirement that he (should)be given (give)another chance is reasonable.
8．As far as I am concerned (concern)，it's necessary to limit the time we spend using smartphones.
9．Ding Ning is acknowledged as one of the best table tennis players in the world.
10．He would have attended your birthday party but he occupied himself(he)with a very important experiment.
