It _____ me more than one hour to read the book yesterday.
— Are you willing to live on Mars one day?— It sounds exciting,but it still worries me.
The shop owner suddenly stopped talking with his mouth like a big “O”. It was the President!
—Has David finished his project yet?—I guess not. He on it at lunchtime. Do you want me to confirm it?
I hope the train will arrive on time, but it’s my control.
—Do you drink much coffee as before?—No, at all. My sleeping problem is getting worse.