By the time he graduated from college, he________ five short novels on his childhood.
A.has written B.had written C.was writing
—I called you yesterday evening, but nobody answered. Where were you then?
—Oh, I ________ my pet dog in my yard. I ________ this dog for two months.
A.was walking; have had B.walked; have bought C.was walking; have bought
—Why don't you buy a car and then travel to Shanghai during the summer vacation?
—I'd like to, but I can't afford________both.
A.to pay for B.paying for C.pay for
—How did you get the MP4, from a shop or by phone?
—________. I always like shopping online.
A.None B.Neither C.Both
—We must be careful as we work.
—Yes. The more careful we are, the ________ mistakes we’ll make.
A.more B.fewer C.less
We met with some________difficulties at the beginning. However, we finished our task at last.
A.unexpected B.uncomfortable C.unimportant
