【题目】My mother ________ in the kitchen when the rainstorm came.

【题目】A 3-kilometer-long bridge ________ in our hometown three years ago.

【题目】I found ________difficult for me to finish the work on time.

【题目】You can surf the Internet _________ you want to know more about the 2020 World Middle School Games.

【题目】____ _________beautiful city!

【题目】—When are we going to see the movie Zoo Topia, this afternoon or tonight?

【题目】We all know that ________ birds fly to Dongting Lake in winter.

【题目】她多久整理一次卧室?

【题目】—Would you please tell me something about ________?

【题目】—Where’s Sam? I can’t find him anywhere.