Anita spoke _________ quietly that I could hardly hear her．（ ）
A．tooB．suchC．soD．very
____ 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
It is said that one Greater Bay Area university ____ in Guangdong in the future．（ ）
A．will be builtB．build
C．will buildD．is built
We should take care of the earth ____ we can make a better world to live in．（ ）
A．so thatB．untilC．even ifD．while
Young people are encouraged to work hard ____their own dreams．（ ）
A．achieveB．achievesC．to achieveD．achieved