As students， we should______ourselves． We can't spend much time playing computer games．（ ）
A．be responsible forB．be proud of
C．be popular withD．be thankful to
Tony， come on， we'll miss the World Cup．（ ）
A．soB．andC．or
Must we finish the homework now？
Our teacher doesn't ask us to． （ ）
A．Yes， we mustB．No， we mustn't
C．No， we needn't
It is said that BRT（快速公交系统） in Yongzhou soon． （ ）
A．was usedB．will be used
C．is used
Mount Yangming is fantastic． you ever it？（ ）
A．Have； visitedB．Was； visiting
C．Do； visit
Why do many people buy things online on Nov 11th？
Because there are so many sales， and the prices are ． （ ）
A．much lowerB．more cheap
C．more expensive