【正文】 the wetlands?—Once a year, usually in spring.A．How often B．How many times C．How soon D．How long10．— ________ will you finish your model spaceship, Tom?— In about two days. I’ll try my best to make it.A．How long B．How soon C．How often D．How far11．—_______will we take off our masks in class? —_______we can find out medicine to cure the disease pletely.A．How long, Not until B．How soon, Not until C．How long, Until D．How soon, Until12．—________ do you go to visit your grandparents?—At least twice a month.A．How often B．How long C．How many D．How old13．—________ do your parents e to visit you in the US, Tom?—Once a year.A．How often B．How long C．How soon D．How far14．—Could you tell me ________ you will e back?—In ten minutes.A．how soon B．how often C．how long D．how fast15．— The 10th China Flower Expo is being held in Chongming. ________ does it last?— About 40 days.A．How long B．How soon C．How far D．How often16．—______ do you think we can finish the report?—Perhaps in one more hour.A．How long B．How much C．How soon D．How often17．—A nice Tshirt! ________ is it?—It’s 50 yuan.A．How long B．How far C．How much D．How old18．—________ is your hat, Tom?—It’s twenty dollars.A．How much B．How often C．How long D．How far19．— ________ did your family stay in Jinan?— For two days.A．How long B．How much C．How often D．How far20．—________ can you have these trousers ready? —In 24 hours.A．How soon B．How long C．How often D．How many21．一___________do your parents take exercise, William?—Less than three times a week.A．How long B．How much C．How soon D．How often22．________ are you doing here, baby? You must go to bed. It’s late.A．What B．Who C．When D．Where23．—________ do you go to the school library?—Twice a week.A．How long B．How often C．How soon D．How much24．—Millie, ________ are you reading?—Camel Xiangzi, by the famous Chinese writer, Lao She.A．who B．how C．where D．what25．—________ are you looking for, madam? I think everyone is here.—I don’t think so. Where’s David?A．Who B．What C．When D．Where26．___________ have you worked here?For just one month.A．How often B．How long C．How soon D．How much27．–Mr Black, _______ will the parents’ meeting last?It’s hard to say. Maybe one hour more.A．how long B．how much C．how far D．how often28．— are you handing out the leaflets for？—To ask people to care more about the leftbehind children．A．How B．Why C．What D．Who29．—________?—It is big and modern.A．Where is your school B．How do you like your schoolC．Who is your headmaster D．What is your headmaster like30．—Millie, ________ do you take the course in DIY?—Every Saturday afternoon.A．how long B．how far C．how much D．how often31．—________ is singing over there?—My sister. She likes singing.A．How B．Who C．What D．When32．—________ is it since the Party of China was founded?—It’s her 100th birthday this year. Got it?A．How often B．How soon C．How long D．How old33．—________ is it from your school to your home?—20 minutes by bus.A．How far B．How long C．How soon D．How often34．一 ________ do you check the oil?一About every 5,000 km.A．How far B．How long C．How much D．How often35．—________ does the Qinhuai Lantern Show usually last?— For about fifty days.A．How far B．How often C．How long D．How much36．— ________