_________ a certain doubt among the students as to the necessity of the work.
| A．It existed | B．There existed |
| C．They had | D．There had |
Do you remember the place ________ we visited last year?
| A．that | B．where | C．when | D．in which |
I’ll never forget the day ________ we worked together
| A．when | B．which | C．that | D．where |
Only in this way ______ solve the problem.
| A．can you | B．you can | C．you will | D．will you able to |
He seldom has lunch at school, ________?
| A．hasn't he | B．has he | C．doesn't he | D．does he |
Would you please keep silent? The weather report ____ and I want to listen.
| A．is broadcast | B．is being broadcast |
| C．has been broadcast | D．had been broadcast |