It is dark outside, so please____ your step while going down the stairs.
He _______ us that everything would go according to plan, but it turned out a failure.
His sister left home in 1998, and since.
The weather in Beijing in winter is colder than in Fuzhou.
Although _____ to stop, he kept on working.
第二部分:英语知识运用(共两节,满分45分)第一节:语法和词汇知识(共15小题,每小题1分,满分15分)— Why not go and have dinner in a restaurant? — _______. It’s too expensive.