John promised his doctor he not smoke， and he has never smoked ever since.
| A．might | B．should | C．could | D．would |
Last year the number of death increased ________ 2%～5% ________ the year before last.
| A．to; comparing to | B．to; comparing with |
| C．by; to compare with | D．by; compared with |
“I don't think it's my ________ that the TV blew up. I just turned it on，that's all，” said the boy.
| A．error | B．mistake | C．fault | D．duty |
We ________ here at lunch time; we were delayed at the airport, though.
| A．could be | B．should be |
| C．must have been | D．would have been |
She can't help ________ the house because she's busy making a cake.
| A．to clean | B．cleaning |
| C．cleaned | D．being cleaned |
—What's made you so ________？
—Losing three tickets to the pop music concert.
| A．satisfied | B．upset | C．happy | D．Friendly |