It is not rare in ____ for people in ____ fifties to go to university for further education.
| A．1990s ; the | B．the 1990s ; ／ | C．the 1990s ; their | D．1990s ; them |
The new comer is from Japan, ________ I can tell from his appearance.
| A．which | B．what | C．that | D．who |
It was ________ that the PLA men got to the earth-strike area.
| A．midnight | B．at midnight | C．until | D．for midnight |
He didn’t make ________ clear when and where the meeting would be held.
| A．this | B．that | C．it | D．these |
They look forward with hope ________ a chance to receive further education.
| A．for getting | B．of getting | C．to get | D．to getting |
__in the regulations that you should not tell other people the password of your e-mail account.
| A．What is required | B．What requires | C．It is required | D．It requires |