137.--______ is the population of the town?
---Over 20,000 .And a
third of the population ____
workers of the car factory.
What, are B. How
many , are C. What , is D. How
many, is
138---Alice,why didn’t you come here yesterday?
---I ____ , but my son
suddenly fell ill and I had to take him to the hospital.
A.had B.did C.was
going to D.didn’t