It' s a pity that there are many teenagers _____only on-line activity is chatting with their e -pals !
| A．who | B．that | C．which | D．whose |
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 |
The problem with being a time waster is _____the online game playing often spills over into the periods of time that should be productive.
| A．what | B．which | C．that | D．whether |
The Internet is increasingly accessible at school and at home. _____many parents and teachers are sometimes not as prepared as we should be to warn children about Internet threats.
| A．Actually | B．Generally | C．Surprisingly | D．Unfortunately |