Much time _____ sitting at a desk, office workers are generally troubled by health problems.
| A．being spent | B．having spent |
| C．spent | D．spending |
We arrived at the station ____ the train had left.
| A．after | B．before | C．since | D．when |
___he daydreamed, Peter saw figures in the sky.
| A．Until | B．Since | C．While | D．During |
____ to New York, her father has not heard from her.
| A．Because she went | B．After she went | C．When she went | D．Since she went |
It looks ____ it's going to rain.
| A．that | B．as | C．as if | D．like that |
I thought he hated the TV .You are right,____ he still watches the program.
| A．yet | B．besides | C．also | D．then |