Look! There are so many mistakes in your composition. You ________ have fixed full attention on it.
| A．can | B．should |
| C．need | D．might |
How long do you think it will be ______ the Chinese people land on the moon?
| A．that | B．since | C．until | D．before |
---Will you be _________ this evening, Mary?
---That depends. I am afraid I will be with my manager together discussing a plan.
| A．convenient | B．suitable | C．available | D．efficient |
Don’t quarrel with your friend, ________will damage your friendship．
| A．who | B．which | C．that | D．what |
The White Horse Temple in Luoyang is one of the first historic buildings________ to receive special state protection.
| A．listed | B．having been listed | C．being listed | D．listing |
—Some English idioms are difficult to understand.
—Exactly, ________ you know the meaning of each word.
| A．if only | B．even if | C．as if | D．now that |