Wu Wei， a young artist， has received high _________ from the art community for this sculptures．（ ）
A．prideB．praiseC．promiseD．progress
﹣﹣﹣Have you decided ____ the Expo 2019 Beijing？
﹣﹣﹣This summer holiday．（ ）
A．how are you going to
B．how you are going to
C．when are you going to
D．when you are going to
Dirty air and water are harmful． They ____ kill plants， and even people．（ ）
A．canB．can'tC．shouldD．shouldn't
My father ____ in a panda protection center for 10 years， so he knows a lot about panda．（ ）
A．was workingB．is working
C．has workedD．will work
____ smart the driverless car is! I really want to have one．（ ）
A．WhatB．What aC．What anD．How
A mobile phone with 5G can send videos much ____ than the one with 4G．（ ）
A．fastB．faster
C．fastestD．the fastest