_____ it or not, his discovery has created a stir in scientific circles.
| A．Believe | B．To believe | C．Believing | D．Believed |
. If a teacher gives a student _______ hearty smile, the student will treat the teacher as _______ agony aunt.
| A．The; the | B．不填; an | C．不填; the | D．a; an |
----You couldn’t have chosen a better gift for me.
----______.
| A．I’m sorry you don’t like it | B．That’s all right |
| C．I’m glad you like it so much | D．I agree with you |
Without the air to hold some of the sun’s heat, the earth at night_____very cold, too cold for us to live.
| A．will be | B．would have been | C．is | D．would be |
The computer was used in teaching. As a result, not only_____, but students became more interested in the lessons.
| A．saved was teachers’ energy | B．was teachers’ energy saved |
| C．teachers’ energy was saved | D．was saved teachers’ energy |
----_____has been designed to enable children and young people to act safely on roads?
----Programmes and resources in the theme “Road Safety”.
| A．Why is it that | B．What is it that | C．What is that | D．Is it what |