He _____ more than thirty.
| A．mustn’t be | B．shouldn’t be | C．won’t be | D．can’t be |
So far only four of the 77 Chinese children who went missing from a home in Britain last month ________, according to The Guardian.
| A．have found | B．found | C．have been found | D．were found |
. Busy as he is, he ________ a few hours a week for physical exercise.
| A．set off | B．set about | C．set aside | D．set away |
He was once turned down by a primary school for lack of ________ practical teaching experience. But now he has turned out to be one of ________ best teachers in the city.
| A．a; a | B．/; the | C．the; the | D．a; the |
It could take 4-6 months before the first batch（批）of vaccines （疫苗）are available to fight A/H1N1 flu ________ as swine flu, WHO officials said.
| A．known | B．to know | C．knowing | D．having known |
Young people tend to get up very late unless ________ to rise early.
| A．required | B．requiring | C．they were required | D．to require |