_____ two years’ time, our city will become a modern one.[ ]

Do you know the cost of buying a house in Shanghai is much higher than __ in Tibet? —Of course, I know. It’s impossible for me to buy_____ there.

.—Must I turn off the gas after cooking ? –Of course . You can never be ___ careful with that.

The park is across the school.[ ]

His father is engineer. He designed such useful machine