The flight was delayed（延期）because of storm, ________ the passengers had to wait at the airport.
| A． |
so |
B． |
or |
C． |
for |
He ___________ the volunteer group last year and ___________ many activities since then.
A. took part in…joined B. joined…took part in C. joined…has taken part in
The young man used to ___________ to work, but he is used to ___________ to work now.
A. drive, walking B. drove, walked C. drive, walks
We are all looking forward to ______ more than 6,500 yuan for the hospital.
A. raise B. raising C. be raised
Please turn off the computer after you finish ______ the email.
A. write B. to write C. writing
--Do you mind ___________ the window? -- ___________.
A. to open…Sure B. opening…Not at all C. open…It’s OK