the day you are informed of your being admittedto a famous key university will be ________ of joy and celebration for yourfamily, relatives and friends

Were you at home at 7:00 yesterday evening I called you but no one was there. —Sorry, we ___________ a movie at the theatre at that time.

Microblogs experienced rapid growth in 2011 in China, with the number of microblog operators, users and visitors _____ several times.

It is impolite you to ring off when others haven’t finished their talking on the phone

David ________ chicken, but he ______ fruit.