I think the director’s attitude_____ this program will decide what we should do next.
| A．towards | B．at | C．on | D．for |
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 |
I learned a little Russian _____ I was at middle school.
| A．though | B．although | C．as if | D．when |