Question

【题目】I ______ get on the bus when I heard someone calling me from behind.

A. was to B. was going to

C. would D. was about to

Answer 1

【答案】D

【解析】试题分析：考察固定句式。固定句式be about to do sth when…正要做某事在这时…该句式不能和将来时的时间状语连用。句意：我正要上车，在这时我听见有人从背后喊我。故D正确。