Question

They thought __________ important to look right and left when ________ the road.

A．it’s; cross

B．it; to cross

C．it; crossing

D．it was; to cross

Answer 1

C

試題分析: 句意：他們認為過馬路時向左右看非常重要。cross 橫穿；they主語，thought謂語，it形式賓語，真正的賓語為to look right and left;when crossing the road當過馬路時，疑問詞+現(xiàn)在分詞做伴隨狀語；故選C。