They have - same shapes。改成一般疑問句

一般疑問句：Do they have the same shapes?

將陳述句變成一般疑問句的方法就是：就是將助動詞或者情態動詞提至句首，第一人稱要轉換成第二人稱，另外要注意根據時態選用合適的助動詞或者情態動詞，在疑問句中謂語動詞要也要處於合適的狀態。

例如：

I like peach.→Do you like peach?

She went there.→ Did she go there?

They have never met each other before.→ Have they met each other before?

We can make it.→Can you make it?