1. ---I knocked over my coffee cup. It went right over _______ keyboard,
---You shouldn’t put drinks near ______ computer.
A. the; \ B. the; a C. a; \ D. a; a
2. ---Your job ______ open for your return.
--- Thanks.
A. will be kept B. will keep C. had kept D. had been kept
3. _______ you have tried it, you can’t imagine how pleasant it is.
A. Unless B. Because C. Although D. When
