—Your spoken English is so good. Have you been abroad?
—Yes. I in London for two years.
| A．have stayed | B．stayed | C．had stayed | D．have been staying |
Mencius believed that the reason why man _____ the animals is that man is good.
| A．is similar to | B．is different from | C．are clever than | D．are kind to |
Strong sandstorms are often _____ you cannot see the sun.
| A．so thick that | B．such thick that | C．thick in order that | D．thick such that |
He then moved to London, _____ he became famous.
| A．which | B．when | C．where | D．why |
One third of the class _____ agreed to be volunteers to help the aged this vocation.
| A．are | B．is | C．has | D．have |
It’s been years since I _____ myself so much.
| A．enjoy | B．enjoyed | C．have enjoyed | D．had enjoyed |