题目内容

prep. 横过，穿过

A. across
B. cross
C. over

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n. 草地

A. plant
B. class
C. grass

v. 打字

A. copy
B. type
C. tape

请将 “open the window!”改写成现在进行时

A. He are opening it.
B. He is opening it.
C. He was opening it.

请将 “Sharpen this pencil!”改写成现在进行时，以下正确的一项是

A. She is sharpen it.
B. She was sharpening it.
C. She is sharpening it.