题目内容

用分子式来表示化学反应的式子叫做化学方程式。

A. 对
B. 错

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Questions 11 to 18 are bused on the conversation you have just heard.

A. It’s the longest report she’s ever written.
B. She’s only half way done with it.
C. She’ll finish it in two weeks.
D. She has spent less time on it than the man thinks.

He ______ in this school since 2000.

A. [A] taught [B] has taught [C] teaches

Lisa painted the surface of the orange

— Why won’t you go to the movie with me,Betty — Because I______it twice.

A. [A] saw
B. have seen
C. will see

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