(2009.12)It is important that we ________ the task ahead of time.
A. will fish
B. finished
C. finish
D. shall finish
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(2009.12)Would you please pass me the book ________ cover is black?
A. which
B. whose
C. that
D. its
(2009.12) ________ in the company for three years, Mark has become experienced in business negotiations.
A. Having worked
B. Have been working
C. Have worked
D. Worked
(2009.12)Not until she arrived at the meeting room ________ she had forgotten to bring the document.
A. she realized
B. did she realize
C. she did realize
D. does she realize
(2009.12)John had never been abroad before, ________ he found the business trip very exciting.
A. because
B. though
C. so
D. while