By the time Pierce comes back from the meeting，we________here for three hours.
A．will be waiting B．is waiting
C．will wait D．will have waited
I was out of town at the time，so I don’t know exactly how it ________.
A．was happening B．happened
C．happens D．has happened
—Tom，you’ve got an A in the final English exam.Congratulations!
—Thanks.But I never thought the result came out so fast.The papers________when I left the teacher’s office just now.
A．had been marked
B．were still being marked
C．are still marking
D．had been marking
—Have you seen the movie “2012”？It’s quite thrilling.
—No，I ________ to buy a ticket，but it ________ cats and dogs.
A．have intended；was raining
B．intended；had rained
C．have intended；rained
D．had intended；was raining
I was sleeping when the telephone rang again.It was the third time that I ________ that night.
A．have been interrupted B．had been interrupted
C．interrupted D．had interrupted
Up to now，the program________thousands of children who would otherwise have died.
A．would save B．saves
C．had saved D．has saved
