单项选择题

The project will have to be given up ______ the government agrees to invest enough money.

A．unless
B．if
C．so that
D．until
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单项选择题
How long ______ in the sun You are working too hard!
A．have you sewn
B．did you sew
C．have you been sewing
D．are you sewing
单项选择题
After he had finished the blueprint of the project, he ______ it to the committee for approval.
A．admitted
B．submitted
C．transmitted
D．committed
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