How long is your English book?是什么意思?怎么回答?

How long is your how long is your desk?怎么回答 How long and how wide is your classroom? how long is your legs还是how long are your legs?how long is your legs还是how long are your legs?请问这两个到底哪个才是对的呢?还有How big is your feet? How long is one erection of your penis? how long is your school day?怎样回答 How long is your school day?要回答 How long is your school day?完整回答 How long is your English book?是什么意思?怎么回答? How long is it since your father_____an engineer?（become） How long is your arm?怎么回答.假如问你How long is your arm?你怎么用英语回答。 (How long does) it take you to walk from your home to your office?为什么是How long does?How long is为什么不行 How long is it? ________ is your brother now? A:How long B:How tall How long is it from your home to your uncle's house?哪里错了? how long is your arm?和How big is your hand?怎么回答是要用centimeter 还是feet什么的How long is your leg?How long is your arm?How big is your foot?How big is your hand?请给我一个示范的回答 ______ is your office four office from your your home A.how much B.how far C.how long D.how many --------is it from your home to school It‘s three milesA.how long B.how far C.how often 为什么?