【推荐1】Now the ________ (pollute) is very serious.

【推荐2】Can you tell me some ________ (different) between the twins?

【推荐3】The w________ is her mother.

【推荐1】The mother with her two ____________ (boy) goes for a walk to the park every day after supper.

【推荐2】We spent the afternoon blowing up colorful ________ (气球) to decorate the house.

【推荐3】Complete the sentences with the given words in their proper forms（用括号中所给单词的适当形式完成下列句子）：
1. ____________ (first), use some flour to make a pastry.
2. Joe looks so ___________ (fun) when he dresses up as a clown.
3. How ____________ (taste) the fried chicken wings are!
4. There are two____________ (enter) in this building.
5. Tourists spent a lot of time ___________ (wait) for the shuttle bus yesterday.