A． To go to the market. B．To have coffee. C． To have a ……

单项选择题A．She’s been on vacation. B． She’s been at the grocery store.C．She’s been on a business trip.

单项选择题A．Their billing system has been efficient. B．Their old billing system is outdated.C．He’s unimpressed with the new billing system.

单项选择题A．To buy a newspaper. B．To find a chemist. C．To post a letter.

单项选择题--- So, do you know where you’d like to go--- Actually, I’ve heard that it’s very expensive and it’s cold all the time.

单项选择题_____ I’m getting married!

单项选择题________ really. I like both public transport and driving.

单项选择题Einstein’s theory of relativity seemed hard to believe at the time _______.

单项选择题Sometimes it is necessary to be careful _______ the right date to sit for a test.

单项选择题Tina’s children, _____ all live nearby, organized a big party for her eightieth birthday.

单项选择题When Sally ______ the criminal ______ her house, she screamed at the top of her voice because she didn’t want ______.