I “ll go to the library as soon as I finish what I ______.
A. was B. am doing
C. have done D. had been doing
---The last one __________________ pays the meal.
---Agreed!
A. arrived B. arrives C. to arrive D. arriving
It is the fourth time that Tom ______ in the maths exams.
A. failed B. has failed
C. had failed D. have failed
The reporter set______ what the old said and then telephoned it to the editor.
A. off B. up
C. down D. about
（题文）You can’t imagine what difficulty we had ________home in the snowstorm.
A. walked B. walk
C. to walk D. walking
——Can I smoke here? ——Sorry. We don’t allow _______here.
A. people smoking B. people smoke C. to smoke D. smoking
