Special attention should be paid _______ our earth from _______.
| A．to protect; being polluted |
| B．to protecting; being polluted |
| C．to protect; polluting |
| D．to protecting; polluted |
--Paul, I'd like to have a talk with you at tea break.
-- __________ Have what with me?
| A．Yes, please. | B．Sorry? | C．Thanks. | D．You're welcome. |
--Nancy is not coming tonight.
--But she ___________ !
| A．promises | B．promised |
| C．will promise | D．had promised |
He must have attended the meeting yesterday,___________ he?
| A．didn't | B．mustn't | C．needn't | D．hasn't |
I was really too busy with my homework and I couldn't help ____________ housework.
| A．doing | B．do | C．did | D．done |
Mary is one of the brightest students who_________ from New York University.
| A．is graduated | B．have graduated |
| C．has graduated | D．are graduated |