The first thing ______ we should do is to tell him the mews.
| A．who | B．which | C．that | D．whom |
Mark isn't coming to the concert ________________ he has got too much work to do.
| A．so | B．until | C．although | D．because |
-When will you go back to your hometown? - _______.
| A．Until the work is finished |
| B．Not until the work is finished |
| C．After the work will be finished |
| D．As soon as the work will be finished |
— Was it under the tree ________ you were away talking to a friend?
— Sure. But when I got back there, the bike was gone.
| A．that | B．where |
| C．which | D．While |
Some families in the countryside were _____ poor _____ pay for the school. We should try our best to help them.
| A．too, couldn’t | B．too, to |
| C．very, can’t | D．so, couldn’t |
Difficulties are nothing _____we are not afraid of them.
| A．for | B．as | C．if | D．whether |