Mark needs to learn Chinese ________his company is opening a branch in Beijing.
A. unless B. until
C.although D. since
________ I have to give a speech, I get extremely nervous before I start.
A. Whatever B. Whenever
C. Whoever D. However
________ small, the company has about 1,000 buyers in over 30 countries.
A. As B. If
C.Although D.Once
He is so busy. He cannot afford enough time with his son ________ he wants to.
A.even if B.as if
C.because D.before
________ we have enough evidence, we can't win the case.
A.Once B.As long as
C.Unless D.Since
I have heard a lot of good things about you I came back from abroad.
A. since B. until
C. before D. When