33．Only after he had spent several nights working on the math problem_______to wonder whether the problem was wrongly set．
| A．did he begin | B．he began | C．he did begin | D．began he |
The new movie __________ to be one of the biggest money-makers of all time.
| A．pretends | B．declines | C．agrees | D．promises |
None of us had expected the middle-aged engineer died __________ his design uncompleted.
| A．from | B．without | C．with | D．of |
Always read the __________ on the bottle carefully and take the right amount of medicine.
| A．descriptions | B．instructions | C．introductions | D．Explanations |
The mayor often says that providing children with __________ to the useful information is of great importance.
| A．access | B．prevention | C．protection | D．allowance |
__________ of all was that not a sound could be heard.
| A．It frightened us most | B．The thing that most frightened us |
| C．We were most frightened by | D．What frightened us most |