2.　　　 - What if the computer _________?　

- Don’t worry. You can call in experts to repair it.

1.　　　 Dad’s so tired; a week’s holiday will certainly _________ to his health.

2. Usage of phrases

10.　 Scientists still cannot p___________ when earthquakes will happen.

9.　　　 These shoes do not m___________; one is large and the other is small..

8.　　　 There must be some m___________. I ordered coffee, not black tea.

7.　　　 Your plan sounds fine in t__________, but I don’t know if I’ll work in practice.

6.　　　 At the airports, machines s___________ all the luggage for bombs and guns.

5.　　　 The little boy climbed the tree and sat on a b_____________.

4.　　　 Don’t be so c___________--it’s got nothing to do with you.