Question

【题目】Betty's aunt ________ the floor at the moment.
A.sweeps
B.is sweeping
C.celebrates
D.is celebrating

Answer 1

【答案】B
【解析】句意：贝蒂的姑姑正在扫地。at the moment此刻，现在，是现在进行时态的标志词，首先排除A, C；sweep打扫，celebrate庆祝。sweep the floor扫地。所以答案是B。