根據(jù)括號里的要求改寫句子。
1. The pen can be kept for two weeks. (對畫線部分提問)
_________ the pen _________?
2. We must send the sick man to hospital at once. (改為被動句)
The sick man must _________ to hospital at once.
3. About one hundred stamps have been collected. (對畫線部分提問)
________ stamps _________ collected?
4. the boy, the glass, by, broken, was (連詞成句)
______________________________________________________
5. The policeman saw a thief rush into a bank. (改為被動句)
A thief ________ rush into a bank by the policeman.