Don’t make a noise! They _______on a physics problem now.
| A．will work | B．are working | C．worked | D．have worked |
—Do you like swimming?
—Yes, swimming is a good way _______ fit.
| A．keep | B．to keep | C．keeping | D．keeps |
—Would you like to climb mountains with me this Sunday?
—I’d love to. But I _______ play table tennis against Class Three.
| A．am going | B．am going to |
| C．am | D．going to |
—What about this pink skirt,madam?
—This one is really beautiful. I will buy it_________it's a little expensive.
| A．though | B．but | C．because | D．and |
Only when the work is done ，___________ be able to go back home.
| A．you have | B．you will |
| C．will you | D．have you |
—I prefer. __________ with a pen to________on the computer because I type so slowly.
—So do I．
| A．write; typing | B．to write, type |
| C．writing; type | D．writing; typing |