【正文】 in ________.A．who invented paocai ；how does every family make the traditional foodB．who did paocai invent；how every family makes the traditional foodC．who invented paocai；how every family makes the traditional foodD．who did invent paocai；how does every family make the traditional food17．—Why did Miss Wang look so worried when we saw her?—Because she wanted to know ________.A．where did the other students go B．when would the policeman eC．what her students have done during the trip D．if her students were hurt in the accident18．— Do you know ________ during the Sui and Tang Dynasties?— Yes. A trade in books resulted and more people learnt to read.A．who invented printing B．why were paper introducedC．where paper were made D．how printing influenced people19．The students are discussing ________.A．why they are often under stress B．when did Tom saw a doctorC．who would teach them English D．whether is stress a big problem20．–Excuse me, could you tell me ？ Go along this street until you see some buildings with golden roofs.A．how I can go to Tianning Temple (天寧寺)B．how often you go to Tianning TempleC．how soon you will go to Tianning TempleD．how many times you have been to Tianning Temple21．—When will Mr Liu e back to Zhenjiang? —Sorry, I don’t know ________.A．how long he will stay in Xinjiang B．how he went to XinjiangC．how soon will he be back from Xinjiang D．why he is going to Xinjiang22．—Do you know ________—In the 1960s.A．where Havoc in Heaven was created B．when Havoc in Heaven was createdC．where was Havoc in Heaven created D．when was Havoc in Heaven created23．—Could you please tell me ________ for travelling this summer?—We plan to go to the Great Wall.A．how will your family go B．how your family will goC．where your family will go D．where will your family go24．—Ann, could you tell me ________ yesterday?—Oh, I went to the supermarket for shopping near my home.A．where did you go B．when you went C．who you will go with D．where you went25．—Could you tell me ________ to London?—Sure. Next month.A．when will you travel B．when would you travelC．when you will travel D．when you travel26．I want to know more about Hong Kong. Can you tell me ________?A．when did it return to China B．when it returned to ChinaC．when does it return to China D．when it returns to China27．—Your book is very interesting. Can you tell me ________? —In Xinhua Bookstore next to our school.A．where did you buy it B．why did you buy itC．where you bought it D．why you bought it28．—What did Mary say to you just now, Alan?—She asked ________.A．if I could go to the museum with her tomorrow B．why I am so sad todayC．who did I play volleyball with after school D．what will I do on the weekend29．—Do you know ________?—Yes. Next week. I’m preparing for it.A．when will we have the singing petitionB．when we will have the singing petitionC．where will we have the singing petitionD．where we will have the singing petition30．—The 2022 Winter Olympic Games will be held in China. Do you know ________?—Yes. In Beijing and Zhangjiakou.A．when it was held B．when was it heldC．what cities it will be held in D．what cities will it be held in31．—Summer vacation is ing! Could you tell me ______