My sister __________ to see me. She’ll be here soon.
A. comes
B. is coming
C. had come
D. came
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— Oh, Mary, what shall we do with our son? He __________ things about. — It’s really annoying.
A. is always leaving
B. has always left
C. always leaves
D. always left
He is very busy these days. He __________ a novel.
A. writes
B. is writing
C. has written
D. will write
If my secretary __________ in the office when you get to the company, please tell her to go home.
A. works
B. has worked
C. is working
D. will work
1、要输入双字符键的上半部字符（ ）。
A. 先按住Ctrl键，再按该双字符键
B. 先按住Alt键，再按该双字符键
C. 先按住shift键，再按该双字符键
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