-How much difficulty did you have_______ this problem?
-_______. It's quite easy.
A. to solve, Nothing B. solving; None
C. to solve, None D. solving; Nothing
Yesterday morning I was just leaving_______ the telephone rang.
A. when B. while C. because D. since
-When did your computer go wrong?
-Last night, while I_______ some music from a website.
A. downloaded B. am downloading
C. was downloading D. have downloaded
The girl devoted all her time she had_______ others.
A. to help B. helping C. to helping D. helped
_______ he brought us!
A. What a good news B. What good news
C. How good news D. How good a news
There are many trees on_______ side of the street, and_______ of the trees is still growing.
A. both; the number B. either; the number
C. both; a number D. either; a number
