1. It is important that the hotel receptionist ______ that guests are registered correctly.
山东群英会走势图表A. has made sure B. made sure C. must make sure D. make sure
2. I suggested he should ______ himself to his new conditions.
A. adapt B. adopt C. regulate D. suit
3. I'll never forget ______ you for the first time.
A. to meet B. meeting
C. to have met D. having to be meeting
4. Cancellation of the flight ______ many passengers to spend the night at the airport.
A. resulted B. obliged C. demanded D. recommended
5. That young man still denies ______ the fire behind the store.
A。 start B。 to start
C. having started D. to have started