在建立一个 tar 归档文件的时候，可列出详细列表的命令是（）
A. tar -t
B. tar -cv
C. tar -cvf
D. tar -r
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Mary _____ in Wuhan since 2004.
A. lives
B. lived
C. have lived
D. has lived
-Where is Cathy?-She _______ Beijing, and she will be back in three days.
A. has been to
B. has been in
C. has gone to
D. went to
-Would you like to go to the East Lake with me, Joy?-No, I________ that place a thousand times.
A. have gone to
B. have been to
C. have went to
D. have been in
-_____you_____your homework yet?-Yes, I_____ it three minutes ago.
A. Did; do; have finished
B. Did; do; finished
C. Have; done; have finished
D. Have; done; finished
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