--How often do you go to the library?--______.

A. In two days   B. Every few days   C. Each third day   D. Every a few days

--_____ of the population of the city _____workers?

--About 60 percent.

A. What; is  B. What; are  C. How much; is  D. How much; are

--How did you do in the test?

--Not so well. I _____ much better but I misread the directions for Part D.

A. could do   B. could have done   C. must have done   D. should do

---____ will the meeting _____?---In about 20 minutes.

A. How long, last   B. When, last   C. How often, finish   D. How soon, end

She asked _____ we were getting on well with our work.

A. how  B. if  C.what  D. that