--- Ought we _____ clean the class room today?
--- Yes, you _____.
| A．to; ought to | B． /; ought | C．ought; ought | D．/; ought to |
-- Someone's dropped ________ and poured it on the new carpet.
-- Who _______ it?
| A．a coffee cup; has done | B．a cup of coffee; did |
| C．a cup for coffee; did | D．a coffee's cup; has clone |
Today a large coal-fired power plant can give out in a single year as much poisonous gas as was blown out by the May 18,1980 outbreak of Mount St. Helens, ______ some. 400,000 ton.
| A．its amount was | B．amounts to | C．amounting to | D．it was amounted |
So difficult ________ it to live in an English－speaking country that I determine to learn English well.
| A．I have felt | B．have I felt | C．I did feel | D．did I feel |
The medicine is supposed to cure this disease, but I’m not sure it.
| A．does | B．was | C．has | D．is |
----No one is so ____ about his joy as Doctor Li.
----You are right. He devotes all his time and energies to his cause.
| A．mad | B．wild | C．serious | D．crazy |