I think ___is necessary ___ my 20-year-old daughter to have her own mobile.
--_____________________ --He is not very heavy and wears glasses.
-_____the population of China? -_______over 1,300,000,000.
In the UK, a lady usually doesn't like to be asked ___.
I didn’t believe he could drive ________he told me.
—Would you like to stay ____ days in Beijing? —No, thanks. I’m afraid I’ll be back tomorrow.