_____________ your sister have a computer—Sorry, I don’t think she has ______________.

Chinnewenergy in an efficient way.

Have you heard the news ________ a highspeed railway between Huangshan and Hangzhou will be under construction soon?[ ]

I’ll probably come to see you on Sunday; ________, it will be on Monday

busy writing a story, only ______once in a while to smoke a cigarette