Arecent study shows that a person's living conditions only _______about 50% of his or her happiness.
A. account for
B. turn on
C. take away
D. send out
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The team finished the project one month ahead of time,_______surprised all of us.
A. that
B. which
C. when
D. who
It has been more than five years _______they met last time .
A. since
B. before
C. for
D. until
When you finish ______your questions, simply press the Enter key.
A. type
B. typing
C. to type
D. typed
______career you choose, effective communication skills will serve you well.
A. Whenever
B. Wherever
C. Whatever
D. However