题目内容

用括号内所给词组的适当形式填空。
1. —Would you mind helping me to finish the work?
    —Of course not. I'll do it __________.(立刻)
2. It's snowing outside, you'd better __________(穿上)your overcoat when you go out.
3. I__________(过去常常)collect stamps, but now I am not interested in it more.
4. __________(到目前为止)our government has taken measures to protect the environment.
5. Liu Xiang __________(参加)the 2008 Beijing Olympics,
    but it's a pity that he didn't win a gold medal.
1. at once   2. put on   3. used to   4. So far   5. took part in
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