Sarah is ______than her sister Susan．Sarah is 166cm tall．Susan is 171cm tall．（ ）
A．shorterB．shortestC．tallerD．tallest
A 3﹣kilometer﹣long bridge ________ in our hometown three years ago．（ ）
A．has builtB．is builtC．was built
Diana used to _________ to work， but now she is used to ________ because the road is crowded and she wants to keep fit．（ ）
A．drive； walkB．drive； walking
C．driving； walk
I found ________difficult for me to finish the work on time．（ ）
A．thatB．itC．this
You can surf the Internet _________ you want to know more about the 2020 World Middle School Games．（ ）
A．ifB．althoughC．until
_________beautiful city!
Yes． Tourists from all over the world come to visit it every year．（ ）
A．HowB．WhatC．What a