"I want to go to Mars （火星），because it's a place that no one______to before，"said Carson．（ ）
A．has goneB．has beenC．wasD．went
﹣Which way do you prefer，reading online or reading on paper？
﹣______．Sometimes I read online，sometimes I read on paper．（ ）
A．EitherB．BothC．Neither
﹣It's raining hard，you should drive as _______as possible．
﹣OK，I will．（ ）
A．clearlyB．quietlyC．carefully
Taxi Apps（打车软件）can help us travel around more easily，_______more and more people like using them．（ ）
A．orB．soC．but
﹣The school net will be shut down for safety reasons．
﹣That doesn't ____ me at all．I'm not a net﹣worm，anyway．（ ）
A．fitB．satisfyC．worry
﹣This windbreaker is too expensive．Show me another，please．
﹣Sorry，but that's the __________．（ ）
A．dearestB．longestC．cheapest