Could you tell me how to pay for the food by QR code（二维码）on the phone？
．（ ）
A．Take it easyB．It doesn't matter
C．You're welcomeD．Sure． I'd love to
Look! Trees are green and flowers are everywhere．
______beautiful place it is!（ ）
A．How aB．WhatC．What a
I have ______eight﹣month﹣old sister and she is very lovely．（ ）
A．aB．anC．the
My mother was badly ill in hospital yesterday． I had to look after her， so I didn't go to have the picnic．
______．（ ）
A．Never mind
B．I am sorry to hear that
C．No problem
The man______ is talking to my math teacher is my father．（ ）
A．whoB．whichC．what
_____ Wugang Airport_____ last year？（ ）
A．Did； buildB．Had； builtC．Was； built