【题目】They put the cups ______ their heads. ( )
A.underB.onC.at
【题目】I often make _______ mistakes with Chinese. ( )
A.lots ofB.lot ofC.a
【题目】It’s _________ to learn English. It’s interesting. ( )
A.difficultB.easyC.hardly
【题目】They ______ to play a baseball game yesterday. ( )
A.planB.planedC.planned
【题目】—Is it on your bed?( )
—No, ______
A.it isn’tB.it isC.it’s
【题目】选择不同类的单词：( )
A.whyB.isC.what
A.easyB.difficultC.smile
A.worldB.classroomC.playground
A.inB.thereC.on
A.sawB.cameC.laugh