[单选题] Government cannot operate effectively ________ it is free from such interference.

1、[单选题]______ you decide to take up,you should try to make it a success.

• A、If only
• B、Unless
• C、Whatever
• D、Whenever

• 点击查看答案
• 进入题库做题

2、[单选题]The workers have built a lot of new houses in Shanghai ______

• A、in the past ten years
• B、for ten years
• C、last year
• D、ten years ago

• 点击查看答案
• 进入题库做题

3、[单选题]________ men have learned much from the behavior of animals is badly new.

• A、That
• B、Those
• C、What
• D、Whether

• 点击查看答案
• 进入题库做题

4、[单选题]When I try to understand ________ that prevents so many Americans from being as happy as one might expect,it seems to me that there are two causes.

• A、why it does
• B、what it does
• C、what it is
• D、why it is

• 点击查看答案
• 进入题库做题

5、[单选题]We were struck by the extent ________ which teachers’decisions served the interests of the school rather than those of the students.

• A、to
• B、for
• C、in
• D、with

• 点击查看答案
• 进入题库做题