One may be doing something quite difficult.,One may be -找考题网

单项选择题

A. One may be doing something quite difficult.
B. One may be doing something quite risky.
C. One may be doing something quite annoying.
D. One may be doing something impossible.

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单项选择题

A. Writing papers for his classes.B. Meeting with his professors.C. Doing extra work in the chemistry lab.D. Working overtime as a librarian.

A. Writing papers for his classes.
B. Meeting with his professors.
C. Doing extra work in the chemistry lab.
D. Working overtime as a librarian.

单项选择题

A. Collecting objects on the beach. B. Creating computer models. C. Mapping currents in the ocean. D. Tracking water pollution.

A. Collecting objects on the beach. B. Creating computer models.
C. Mapping currents in the ocean. D. Tracking water pollution.

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