---All the building materials have been washed away.
---So I have heard. But there was no sign ______ a heavy rain was on the way last night.
| A．when | B．If | C．which | D．that |
Three days later, word came _______ our country had sent up another man-made satellite.
| A．which | B．when | C．that | D．where |
________ breaks the law should be punished.
| A．No matter who | B．Anyone |
| C．A man who | D．One |
During the war lots of families _______ and a large number of people became homeless.
| A．broke up | B．broke away | C．broke off | D．broke out |
Press this button when the light goes on – you’ll soon get the hang of it.
| A．learn how to do | B．hang on |
| C．hang off | D．show how to do |
-- I’d like to invite you to a concert this evening.
-- Thank you, but _______ I’ll be free I’m not sure at the moment.
| A．while | B．if | C．whether | D．when |