Only those who have experienced hardship ______ well aware of what happiness means.
| A．can they be | B．they can be |
| C．can be | D．they can |
I'd appreciate __________ if you would like to teach me how to use blog and twitter on the Internet.
| A．that | B．it |
| C．this | D．what |
He prefers __________ the fruit at half price rather than __________ them to go bad.
| A．selling; allow | B．to sell; allow |
| C．selling; allowing | D．to sell; allowing |
__________ is very important for us students to learn English well.
| A．It | B．As |
| C．What | D．There |
I __________ go there alone, but he __________ go there by himself.
| A．dare; doesn't dare | B．dare to; dares not |
| C．dare to; dare not | D．dare to; doesn't dare |
I prefer __________ the movies rather than __________ at home.
| A．go to; stay | B．to go to; stay |
| C．going to; staying | D．to go to; staying |