13. （ ）

(单选题)Yesterday Mr. Green went to his hometown, and visited the ol (单选题)—Jenny, we ______ buy Mom present. We can clean the house fr (单选题)How ______ I was when I heard the ______ news! (单选题)I’m very thankful to you for your kind ______, and I’m sure (单选题)—Why do you look so tired?—______ I stayed up all night watc (单选题)As many as 100 people ______ in the air crash. (单选题)My little brother couldn’t move the heavy box, but he didn’t (单选题)Work hard and you will get ______ A in the coming exam. (单选题)The author believes that the incident described in the passa (单选题)According to this passage, bees communicate by ______.