--Whenever I come to visit, he is always watching TV.
--You’re really observant. He can’t help but ________ some TV during meals or before bed.
| A．watch | B．watching | C．to watch | D．watched |
Ladies and gentlemen, please remain ________ until the plane has come to a complete stop．
| A．seated | B．seating | C．to seat | D．seat |
He told us whether _________ a picnic was still under discussion．
| A．to have | B．having | C．have | D．had |
--Has your teacher returned from America yet?
--Yes, but he _______ here for only three days before his company sent him to Africa．
| A．was | B．has been | C．will be | D．would be |
It is said that he will______ his uncle’s business when he is mature enough to deal with the pubic relations．
| A．think over | B．hand over | C．take over | D．go over |
Jack’s family _______ their holiday in Shanghai this time next week．
| A．are enjoying | B．are to enjoy |
| C．will enjoy | D．will be enjoying |