It is very kind of you to do the washing-up, but you it.
| A．mustn’t have done | B．wouldn’t have done |
| C．mightn’t have done | D．didn’t have to do |
. ______we’ll be able to drive a car______ by electricity, solar energy in about ten years.
| A. Fortunately; driven |
B. Eventually; power |
| C. Luckily; commanded |
D. Hopefully; powered |
. The chickens will provide us _______ feathers, ______ we can make use for cleaning the table and benches.
| A. with; with |
B. with; of which |
| C. of; which |
D. of; from which |
. --- This book by Tony Garrison is of great use for our course.
--- But I think his latest one is______ worth reading.
| A. better |
B. more |
C. well |
D. very |
. --- My son is addicted to drugs. He isn’t hopeless, is he?
--- Yes, ______ he mends his way and starts all over.
| A. if |
B. when |
C. even if |
D. unless |
. The ancient Chinese vases _______ display attracted lots of experts and collectors, some of whom suggested they______ on the next fair.
| A. on; displayed |
B. on; be displayed |
| C. in; displayed |
D. in; be displayed |