How big is the circulation of the paper the man work for？A．Only 2,000.B．Less than 2,000.C．

_____ is the circulation and refreshing of the air in a space without necessarily a change

Under normal conditions, the quantity of air circulation becomes less and lessWhat is the

In "How much do you think she drinks？" how much is ______ of the sentence.A．the subjectB．t

The Central Bank is busy with estimating the circulation of its currency in the economy. T

I think a big part of it is ______ we know how to have fun on the job.A: thatB; whichC;

How does Obama think of the mission of U. S. troops？A．He doesn"t think that it is a comple