PowerPoint中用鼠标连续选取多个选项时用什么键（）
A.按下Enter
B.按下Alt
C.按下Ctrl
D.同时按下Ctrl和Alt
参考答案：C
句式转换,每空一词。
1.She has to see a doctor. (改为否定句）
She __________ ___________ to see a doctor.
2. Miss Li is popular in our class. Mr. Wang is more popular.(同义句转换)
Mr. Wang is __________ popular __________ Miss Li.
3.He has a toothache.（ 对划线部分提问 ）
__________ the matter __________ him?
4. Lin Hui often goes hiking on weekends. (用tomorrow 改写句子)
Lin Hui __________ __________ hiking tomorrow.
5. It usually takes me 3 hours to do my homework.. (同义句转换)
I usually __________ 3 hours __________ my homework.
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is more popular.(同义句转换)