6. — How was your interview for going abroad to study?
— Oh, I couldn’t feel any _________. I hardly understood most of the questions they asked.
7. We tried to ring you back，Bryan, but we think we ______ your number incorrectly.
A. looked up
B. got through
C. took down
D. worked out
8. We are excited that a satellite ______ 10 tons was successfully placed in orbit yesterday.
C. to be weighed
D. being weighed
9.Smoking increases the risk of heart disease. An average smoker is about to die of a heart attack as a non-smoker.
A. twice more likely
B. twice so likely
C. twice as likely
D.as twice likely
10. Students ______ remain in their seats until all the papers have been collected.