The scientist decided to devote his life to ____ pollution from ____ again.
| A．preventing; happening | B．prevent; happen |
| C．preventing; happens | D．preventing; will happen |
．About seven years ago she felt she had to ask herself _________she really wanted to spend her life farming. Now she has make up her mind to quit farming.
| A．when | B．whether | C．what | D．where |
Unemployment is on the increase. A growing number of young people, _________ , are finding themselves out of work.
| A．in case | B．all in all | C．in particular | D．as a result |
Peter was sure that_________he drank any more of this good red wine he would fall asleep.
| A．if | B．when | C．as | D．since |
Children above 12 are able to take part in skiing or other activities_________for them.
| A．having designed | B．designing | C．to design | D．designed |
People aren’t waching_________television as before on Christmas Day because they use their videos.
| A．too much | B．too many | C．as much | D．as many |