单句改错.
1. You must practice a lot of if you want to be good at hosting.
A BC D
2. I had much work to be done, so I was very busy.
A B CD
3. Remember to listen and write in the same time, will you?
ABC D
4. I hear many people donated money for Save China's Tigers in the show.
A B C D
5. A microphone makes your voice to sound louder.
AB C D_____

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