So involved with computers ____ that the leaders at the summer computer camps often had to force them to break for sports．
| A．has the children become | B．did the children become |
| C．has become the children | D．became the children |
We shou
ld not let our grandparents who are too old and weak ________ alone.
| A．live | B．living. | C．to live | D．lived |
The bank, whose walls are painted white, ________a safe and reliable place.
| A．is thought as | B．is thought of as |
| C．is thought of to be | D．is thought of |
All the neighbors admire this family, ________ the parents are treating their child like a friend.
| A．why | B．where | C．which | D．whose |
We have just heard a warning on the radio ________ an earthquake is likely to strike that area again.
| A．which | B．what | C．that | D．when |
. Stand over there ________ you’ll be able to see it better.
| A．or | B．while | C．but | D．and |