单项选择题
A.in B.at C.on D.to
I'd like to take（）of this opportunity to thank all of y...
单项选择题I'd like to take（）of this opportunity to thank all of you for your efforts.
A.profit B.benefit C.occasion D.advantage
Running your own business usually（）working long hours.A...
单项选择题Running your own business usually（）working long hours.
A.includes B.involves C.contains D.comprises
The same factors push wages and prices up together, the...
单项选择题The same factors push wages and prices up together, the one（）the other.
A.emphasizing B.multiplying C.increasing D.reinforcing
