“We can't go out in this weather，”said Bob，________out of the window.
| A．looking |
| B．to look |
| C．looked |
| D．having looked |
It is about ten years _____ I met you last.
| A．since | B．for | C．when | D．as |
They will never succeed, _____ hard they try.
| A．because | B．however | C．when | D．since |
_____ still half drunk, he made his way home.
| A．When | B．Because | C．Though | D．As |
_____ she was very tired, she went on working.
| A．As | B．Although | C．Even | D．In spite of |
Busy _____ he was, he tried his best to help you.
| A．as | B．when | C．since | D．for |