What's this？

It's a paper cutting of Fu．It's a kind of art_{_________}． （　　）

A．jobB．workC．pictureD．symbol

This year President Xi Jinping wrote a letter to the young pioneers China to celebrate ________ 70th anniversary（周年纪念日）． （　　）

A．theirB．themC．theirsD．they

________ unusual year 2020 is!

Yeah! The pandemic （大疫情） is a challenge not only to China but also to the world．（　　）

A．WhatB．What anC．What aD．How

Because of the special situation this year， about ________ of the students in our school ________ having classes on the Internet at home． （　　）

A．two thirds；areB．two third；is

C．second thirds；areD．two thirds；is

I'm proud of Ezhou， our homeland． So am I． It is becoming ________．（　　）

A．more and more beautifully

B．more beautiful and beautiful

C．more and more beautiful

D．more beautifully and beautifully