When you go outing with your sisters, you must see to ________ that they are safe.
| A．everything | B．it | C．them | D．yourself |
Doctors recommend that all children ________ vaccinated against measles(麻疹).
| A．should | B．could be | C．are | D．be |
Practising Chinese kung fu can not only one’s strength, but also develop one’s character.
| A．bring up | B．take up | C．build up | D．pull up |
The government claims that the economy is improving, but this survey suggests ________.
| A．moreover | B．therefore | C．otherwise | D．meanwhile |
According to statistics, a man is more than twice as likely to die of skin cancer _________ a woman.
| A．than | B．such | C．so | D．as |
Jane was asked a lot of questions, but she didn’t answerof them.
| A．other | B．any | C．none | D．some |