【题目】Now machines do the work ____ men once did by hand.

【题目】I’d love to go with you, ____ I’m too busy.

【题目】You shouldn’t ____ the train ticket while you are still on the train.

【题目】In junior high we ____ run 800 meters every morning.

【题目】—____ do you go to the cinema?

【题目】I don’t think I can afford ____ even one more day.

【题目】Venus (金星) is the ____ planet to the earth in space. It is only 42 million kilometers ____.

【题目】Betty ____ swim, so she is afraid to jump into the river.

【题目】Usually a baby’s face ____ smooth.

【题目】I plan to go on ____ trip in ____ coming summer holiday.