______, I think, the problems can be settled in no time.
| A．A bit more efforts | B．Keep up your spirits |
| C．If you double your efforts | D．Making greater efforts |
AIDS is said __________ the biggest health challenge to both men and women in that area over the past few years.
| A．that it is | B．to be |
| C．that it has been | D．to have been |
— I was wondering if we could go skiing on the weekend.
— __________ good.
| A．Sound | B．Sounded |
| C．Sounding | D．Sounds |
__________ this cake, you’ll need 2 eggs, 175 g sugar and 175 g flour.
| A．Having made | B．Make |
| C．To make | D．Making |
No matter how frequently __________, the works of Beethoven still attract people all over the world.
| A．performed | B．performing |
| C．to be performed | D．being performed |
There have been several new events __________ to the program for the 2008 Beijing Olympic Games.
| A．add | B．to add |
| C．adding | D．added |