招标人与中标人签订合同后5个工作日内,应当向中标人和未中标的投标人退还投标保证金及银行同期存款利息。
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How many times have you been to the Great Wall?Only once. I there last year.
A. went
B. have gone
C. have been
D. go
When Jessy to New York? Yesterday.
A. does; get
B. did; get
C. has; got
D. had; got
Did you wash your clothes?No, I was going to wash my clothes but I visitors.
A. have had
B. have
C. had
D. will have
Have you read a book called Jane Eyre?Who it?
A. writes
B. has written
C. was writing
D. wrote