The problem wasn’t hard. The little girl worked it out quickly.
| A．that | B．much | C．enough | D．a little |
The wild flowers looked like a soft orange blanket __________ the desert.
| A．covering | B．covered |
| C．cover | D．to cover |
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 |