1.I used to image we could live in the same city. However, now she lives in Guangzhou( ) I live in Nanjing.

　　答：while

　　while“然而”，表两者进行对比。句意：她现在住在广州，而我住在南京。

　　2.— Would you like to come to dinner tonight?

　　— I’d like to,( ) I’m busy.

　　答：but

　　but“但是”，表转折关系。回答中的后半句I’m busy可以推断得知转折关系。

　　3.Do you understand what I said ( )do you want me to explain it again?

　　答：or

　　or“或者”，表选择关系。句意：你明白我说的话了吗?或者需要我再解释一遍吗?

　　4.He is absent today, ( )the reason that he is ill.

　　答：for

　　for the reason that… “因为……”，表因果关系。

　　5.Both my brother sister( ) are musicians.

　　答：and

　　both…and… “两者都……”，表联合关系。

　　6.In much of Asia, especially the so-called“rice-bowl”cultures of China, Japan, Korea( ) Vietnam, food is usually eaten with chopsticks.

　　答：and

　　and表联合关系。

　　7.You’ll have to go now, ( )you’ll miss your bus.

　　答：otherwise/or

　　otherwise/or “否则; 要不然”，表选择关系。

　　8.I was watching TV ( )somebody knocked the door.

　　答：when

　　be doing sth. + when… “正在做某事, 这时……”

　　9.He has a lot of work undone, ( )he cannot go back home.

　　答：so/therefore

　　so/therefore “因此;所以”，表因果关系。

　　10.Don’t be afraid. ( )this recipe looks long, it is actually very quick to prepare.

　　答：Although/Though

　　although/though “尽管;虽然”，均引导让步状语从句。