6． Let’s leave ______ (立即) after breakfast.

5.　　　 At least 30 unknown diseases have appeared ___________ (在全世界范围内)since 1970.

4.　　　 Greece is a_______(欧洲) country with a very long history.

3.　　　 Can you think of a s_________ where “doing it alone” might be more important than teamwork.

2.　　　 Joe and Nancy are not visitors here. They are both n_____ of the city .

1.　　　 It’s said that Australia became i_______ of Britain on the 1^st of January , 1901.

20.It’s always difficult being in a foreign country, e____ when you know little about the language.

Unit 2

19.Keep your kids safe by keeping ________ (枪)out of their hands.

18.The man climbed the mountain by r________ in the dark.

17.Poke is very h_________. He told the truth of the accident.