---_____ can we protect the environment in our daily lives?
--- As for me, I think we are supposed to use both sides of paper and try not to use plastic bags.
| A．How | B．Why | C．When | D．Where |
Could you tell me _______ a concert in Nanjing next week?
| A．if there was going to be |
| B．if there is going to be |
| C．whether is there going to be |
| D．whether there is going to have |
–I’m very sorry I broke your cup.
--________.
| A．You’d better not | B．It doesn’t matter |
| C．It’s too bad of you | D．Not at all |
_________ you were sleeping, Hack was practicing playing football.
| A．While | B．As | C．After | D．Since |
The born artist devoted all the time he had ______ for something better or different.
| A．search | B．searched | C．to search | D．to searching |
I’m not sure _______ red and white are a good match.
| A．weather | B．that | C．if | D．how |