—A ruler is 2 dollars and a pen is 3 dollars. How much are they? —They are ________.
—I think______is not easy to draw this picture. —I think so.
—What’s the weather like in Qinghai in winter? —There is ________snow and it is ______cold.
— Excuse me. Where is the stair? — Ok. Go straight ____that door under the EXIT sign.
---Are there any animals in the zoo? ---____________.
__________ did your mother go? ---She went to Hangzhou.