We think ____ our duty to pay taxes to our government.
| A．that | B．this | C．its | D．it |
I used to drink a lot of tea but these days I _________ coffee.
A. preferＢ. preferred C. have preferred D. am preferring
–What should I do first?
--The instructions _________ that you should mix flour with water carefully first.
| A．say | B．tell | C．write | D．go |
Pleasant music is often played _________ classes to make students refreshed and relaxed for a while.
| A．after | B．between | C．among | D．over |
二、单项选择
Don’t worry too much about ________ mistakes. They’re ________ natural part of learning something.
| A．the; the | B．/; the | C．the; / | D．/; a |
—We’d better go downstairs right now for lunch.
—__________ They serve food 24 hours a day.
| A．Hurry up! | B．Take your time. |
| C．No way! | D．It doesn’t matter. |