The management of computer network is really beyond my___,but I can get useful information from it
| A．grasp |
| B．catch |
| C．snatch |
| D．grab |
It was not until I reached my apartment building and unlocked the door __________ what the noise had been.
| A．that did I realize | B．before I realized |
| C．that I realized | D．did I realize |
It was not until I came here __________ I realized this place was famous for not only its beauty but also its weather.
| A．who | B．that | C．where | D．before |
The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good __________.
| A．expectation | B．reputation |
| C．contribution | D．civilization |
_________ he met with the difficulty did he realize the importance of our help.
| A．Even though | B．Never until |
| C．Only before | D．Ever since |
Eating too much fat can __________ to heart disease and high blood pressure.
| A．devote | B．attend |
| C．contribute | D．turn |