No one has _____ been able to trace the author of the poem.
| A．still | B．yet | C．already | D．just |
The waste can be recycled into new products, which _________ will save natural resources.
| A．in turn | B．in return | C．in order | D．in time |
----Hi, Tracy, you look tired.
----I’m tired. I __________the living room all day.
| A．painted | B．had been painting | C．have been painting | D．have painted |
I would like a job which pays more, but __________ I enjoy the work I’m doing at the moment.
| A．in other words | B．on the other hand | C．for one thing | D．as a matter of fact |
_______ our food running out, we had to walk to a village for help.
| A．Since | B．Because | C．With | D．For |
There are two lakes near Joe’s hometown, the larger of covers nearly ten thousand square kilometers.
| A．which | B．whom | C．whose | D．where |