They are visiting Beijing n后面是什么 这是首字母填空最好要符合教材

They are visiting their friends .they are they visiting the great wall now be on a visit to=be visiting 这个短语是什么意思?包括这两句例句也要说出意思: 1.They are on a visit to England. 2.They are visiting England. week they their next are grandparents visiting连词成句 visiting uncle having they fun are their 连词成句 They are visiting the Great Wall.=They are __ __ __ __ the Great Wall. they are always dream of visiting the Disneyland 填dream对吗 帮帮忙啊 They are visiting Beijing n后面是什么 这是首字母填空最好要符合教材 will be 和will be doing 和be going to do 三者区别.我昨天看了一下新概念二的13课,里面有几个句型都是will be doing将来进行时的结构.如:At present,they are visiting all parts of the country.They will be arriving here to they are sure to be they are visiting san francisco____ 1.in 2000 2.last year 3.this weekend 4.when they were free The foreigners _____ many places since they came here.A.visited B.have visited C.are visiting D.will visit they can always ( be/are)friends what are they? they are apples用there be句型怎么说?what are they? they are apples what colour are they? they are red how many apples are they? they are eight 用there be句型 there are many interesting places to visit there.为什么不是visiting.不是说there be后面用doing How can they be happy i____ they are not free? there are many beautiful lakes and mountains ()are worth visiting when you travel in the country.中间用A what they where that My parents are now visiting my sister.是什么结构?完整的句子是：My parents are now visiting my sister in the United States.因为很好奇,visit已经是动词,为什么前面还要用be动词呢?