题目内容
all of a sudden, draw upon, pick up, in addition to, put on
1. We were dancing to music when the power went out.
2. It's surprising that your brother Russian so quickly—he hasn't lived there very long.
3. Learning a language requires time and effort talent.
4. After the play was , it became a hit immediately.
5. We must our advantages to make the work better.
1. all of a sudden 2. picked up 3. in addition to 4. put on 5. draw upon
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