The oil must be used up, the light went out.
| A．for | B．because | C．since | D．as |
Every time ________ they met, they would talk several hours together about the persons and things ________ they remembered in the middle school.
| A．that; who and which | B．when; which |
| C．which; / | D．/; that |
Unless you change your ________ towards your studies, you won’t make any progress, I believe.
| A．point | B．idea | C．sight | D．attitude |
He has given me so much help that I really wanted to do something for him ________.
| A．in return | B．by turns | C．in turn | D．in case |
Mr. Li is absent today. What do you consider ________ to him?
| A．happens | B．is happened | C．happening | D．has happened |
The reason ________ he refused to attend the meeting was that they didn’t give him an invitation earlier.
| A．how | B．which | C．why | D．because |