— Why didn’t you come to Mike’s birthday party yesterday?
— Well, I _______, but I had something important to do at the moment.
A. should B. must C. should have D. must have
Look at the timetable. The flight to Shanghai _______ off at 10:00.
A. is taking B. takes C. will be taken D. will take
_______ many people first go to the Internet for information, it is not always the best place for what you need.
A. As B. Since C. When D. While
The boy was beaten by his stepmother, tears _______ down his cheeks quietly.
A. flew B. flowing C. flown D. to flow
Unfortunately, the whole village was ________ by the earthquake.
A. died away B. wiped away C. died out D. wiped out
The reason ______ most Chinese have healthy white teeth is ______ they eat a healthy diet.
A. why; that B. why; because C. that; that D. for; that
