Two thousand dollars ____ enough for the car.
A: were
B; is
C; are
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______ clearly communicate with and actively listen to employees is essential to improve their performance.
A: Be able to
B; Being able
C; Being able to
Without his assistance, I ________ the research last month.
A: would not have completed
B; could not finish
C; should not finish
_______ tomorrow's lessons, Frank has no time to go out with his friends.
A: Not to prepare
B; Not having prepared
C; Not preparing
—It's about a successful businessman's management experience, isn't it?
— ____________
A: My pleasure!
B; That's right!
C; It's up to you!