39. _______ is certain, people’s living conditions in China have improved a lot since the 1980s.
| A．It | B．As | C．what | D．Which |
Her hope ____ a gold medal in the 2008 Olympic Games.
| A．to win | B．is to win | C．winning | D．will win |
Have you decided ____?
| A．to go with whom | B．whom to go with | C．whom go with | D．with whom to go |
It’s very kind ____ you to ____ me ____ the heavy bag.
| A．for; tell; to take | B．of; thank; for | C．to; speak; to have | D．of; help; carry |
How about ____?
| A．to go out for a walk | B．go swimming in the river |
| C．visiting the sick children in the hospital | D．to having lunch in the restaurant |
My sister used to be fond of ____ table tennis.
| A．play | B．played | C．playing | D．to play |