Our goods with a (an) ________of colors and patterns can meet the demand of customers at different levels.
| A．variety | B．category | C．amount | D．species |
--Have you any oranges and apples?
--__________
| A．Yes, madam, on the second shelf over there |
| B．The oranges are very cheap. |
| C．You like apples, don’t you? |
| D．Of course, we have some fruits. |
I know nothing about the young lady ___________ she is from Beijing.
| A．except | B．except for | C．except that | D．besides |
Sandy could do nothing but _________ to his teacher that he was wrong.
| A．admit | B．admitted | C．admiting | D．to |
__________ she couldn't understand was__________ fewer and fewer students showed interest in her lessons.
A. What; why B. That ; what C. What ; because D.
Scientists say it may be five or ten years___________ it is possible to test this medicine on human patients.
| A．since | B．before | C．after | D．when |