_____ I admit that there are problems, I don't' think that they cannot be solved.
| A．Unless | B．Until | C．As | D．While |
With all the books he needed _____, he left the library happily.
| A．borrowing | B．to borrow |
| C．borrow | D．borrowed |
Jim was late for class again. He went into the room silently to avoid _____ by the teacher.
| A．seeing | B．to be seen |
| C．to see | D．being seen |
--Would you mind if I _____ here?
--__________. Go ahead, please.
| A．smoking; Yes, I do | B．smoking; Of course |
| C．smoked; No, not at all | D．smoke; No |
How many pages ______ you ______ so far? Can you return the book to me tomorrow?
| A．have; looked for | B．have; covered |
| C．did; cover | D．did; see |
The advertising firm usually collects ________ possible about the product.
| A．as information as much | B．much as information as |
| C．as many information as | D．as much information as |