So noisy____ in the dining hall that he could only make himself heard by shouting at the top of his voice.
A．was it B．was there C．it was D．there was
That year his total income, with his reward ________， ________ 12, 000 yuan.
A．added to; added up to B．added; added to
C．added up to; added D．adds to; adds up to
---Do you still remember when we went to Chong qing?
----I can’t remember now but_____ sometime last summer?
A．could it be B．might it be C．must it have been D．could it have been
The demand that the law on gun ownership _____ be changed ___ is very strong.
A．changes B．will be changed C．be changed D．be changing
The increase of the number of the students makes the limited computers not ________ to each student.
A．available B．helpful C．acceptable D．affordable
He had just sent an email to his pal on the Internet ________ the system broke down.
A．while B．when C．after D．since
