哪个正确?There is a bird ()in the sky. A.crow B.crows C.crowed D.crowing
问题描述:
哪个正确?There is a bird ()in the sky. A.crow B.crows C.crowed D.crowing
答
应该用现在进行时,所以是D.
哪个正确?There is a bird ()in the sky. A.crow B.crows C.crowed D.crowing
应该用现在进行时,所以是D.