------I have just had my watch repaired.
------How much did they ____ for that?
| A．cost | B．charge | C．spend | D．pay |
From time to time a crocodile has snatched someone _______ he or she is even aware that the crocodile is there.
| A．when | B．until | C．since | D．before |
_____ unemployment and crime are high, it can be assumed that the latter is due to the former.
| A．Before | B．Where | C．Unless | D．Until |
_____the Internet is of great help, I don’t think it ‘s a good idea to spend too much time on it.
A
. If B. While C. Because D. As
It was a matter of________ would take the position.
| A．who | B．whoever | C．whom | D．whomever |
In China, all the students work hard at school _________ going to university for higher education in the future.
| A．in the habit of | B．in the hope of |
| C．in search of | D．in honor of |