Question

Tom was walking along the riverside when he heard someone calling him from behind. He turned around_______ found nothing.

A．but

B．a(chǎn)nd

C．so

D．or

Answer 1

A

試題分析：句意：Tom 正沿著河邊散步這時他聽到有人從后面喊他。他轉(zhuǎn)過身來，但是什么也沒發(fā)現(xiàn)。根據(jù)句意可知，此處應(yīng)表示轉(zhuǎn)折的關(guān)系。and 和，表示承接；so 因此，所以，表示因果；or 或者，表示選擇。故選A。