Is it the fact ____ he hasn’t turned in his research report?
| A．whether | B．that | C．which | D．why |
To the parents’ worry, some middle school students are ______ computer games and completely forget their studies.
| A．crazy about | B．very fond of | C．concerned for | D．serious about |
It was in 1969 ______ two Americans went to the moon by spaceship.
| A．when | B．that | C．at that time | D．just then |
My mother insisted that I _____to school on foot.
| A．went | B．goes | C．go | D．going |
Since Margot found it difficult to settle in a new place, she felt ______ that the family had to move.
| A．upset | B．crazy | C．happy | D．easy |
The engine of the ship was out of order and the bad weather ______ the helplessness of the crew at sea.
| A．added to | B．resulted from | C．turned out | D．made up |