题目内容

“What were you doing when Anna phoned you?”“I had just finished my work and ______ to take a bath.”

A. starting
B. to start
C. have started
D. was starting

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“Have you gone to see the doctor?”“No, but ______.”

A. I go
B. I am going to see
C. I go to see
D. I’m going to

Each time you look at an object, you ______ a picture.

A. took
B. are taking
C. are taken
D. have taken

Water pipes ______ rusty after a period of use.

A. become
B. is becoming
C. are become
D. were become

This foreign scientist ______ in our college for fifteen years and does not want to leave.

A. worked
B. is working
C. works
D. has been working

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