this is an order.中is 和an要连读吗?

this is an order.中is 和an要连读吗? This is an order是什么如题 速求：：This is order?还是This is an order?并说明理由！ this is order an order of 和 this is an order 这两个怎样连读? for the heart you made can only give me this is an order this document is an official copy of the purchase order specified Is this an egg? this is an easy this is an Is this an eye? Is this an umbrella this is an this is your order何意 4.The policeman ________(order) the man to leave().Mr Ma is giving ________(order).This office gives us an ________(order).The teacher is giving order his students.____________________________________________________ A rabbit have two long ear.______ is ,an,book,english,this This is an[ ][amaze] story. This is an Africa tiger .