I don’t think it is ______taking the trouble to explain the question to him.
| A．worth | B．worthy |
| C．worth of | D．worthwhile |
They wouldn’t agree to sell the house to us at the same price _____ they had promised, _____ was rather disappointing.
| A．which ; as | B．as ; that | C．as ; which | D．that ; that |
The official made the demand that the soldiers ____ at once _____ battlefront.
| A．leave; for | B．to leave; to | C．left; to | D．to be left; for |
All those second-hand goods are sold at ____ before．
| A．30％ as lower price as | B．30％ as low a price as |
| C．as 30％ low price as | D．30％ lower price than |
——The switch to more low-carbon energy, I think, is _____.
——I agree with you.
| A．in a way | B．on the way | C．by the way | D．in the way |
Many a student ____ going to have themselves ____ in the hospital.
| A．is ; to examine | B．are ; examine | C．is ; examined | D．are ; examining |