It was with great joy the couple found their missing son after 18 years.
| A．when | B．that | C．what | D．which |
.—Is there anyone who is gong the Great Wall?
_______
| A．None | B．No one | C．No | D．Not any |
The two countries were between 1989 and 1992.
| A．peace | B．at no war | C．at peace | D．at peaceful |
His uncle gave him books to read, but after a page or two he would put __book down and pick up__ new one.
| A．the,/ | B．a; a | C．a; the | D．the; a |
The oil must be used up, the light went out.
| A．for | B．because | C．since | D．as |
.They have their reasons for keeping their marriage___ secret for ___ moment.
| A．the; a | B．the; the | C．a; the | D．a; a |