there are 打头句子改成疑问句什么情况要留are there 在句子里.

问题描述:

there are 打头句子改成疑问句什么情况要留are there 在句子里.

我只知道How many .are there...例如:原句There are six apples on the tree.(对six提问)答案:How many apples are there on the tree?树上有多少苹果?因为原句中有there are ,所以,问句中也要有,但因为是疑问句,...