The factory had to______ a number of employees because of economic decline in the country.
| A．lay out | B．lay off | C．lay aside | D．lay down |
Have you ever noticed the house, ________ windows are always closed?
| A．where | B．which | C．when | D．whose |
I want to know when he ________ for New York tomorrow.
| A．has left | B．had left | C．is leaving | D．has been leaving |
Even on a cold day，he prefers ________out to play football ________ at home.
| A．going；rather stay | B．going；to staying |
| C．to go；rather than staying | D．to go；rather than to stay |
It was in 1969 ______ two Americans went to the moon by spaceship.
| A．that | B．before | C．when | D．Since |
—What ________ an important part in their lives?
—Friends.
| A．plays | B．takes | C．makes | D．Acts |