-- You look very worried. _______? -- My new car hurt an old woman.A. Can I ask a favour B. How do you do C. What’s up
I found _______ difficult to work out the problem.
The Greens used to live in London and now they ________ in Beijing.
The train was travelling _______ low speed at that time.
— Have you ever been to Sanya? — Yes, ________already.
—__________is it from Nanjing to Yangzhou? — About one hour’s bus ride.