Question

a an 名词单复数变化 ,出十小题,就是关于a an 的用法,不可数名词和可数名词,例：this is an arm.

Answer 1

this is a book.

this is an apple.

that is a desk.

that is an earth.

this is a peach.

this is a board

she took half an hour for jogging.

this is an egg.

this is an orange.

this is a cat.