—John got injured in the game. —Would it be at least a fortnight ______ he could recover and return to school? A.when B.that C.since D.before 答案:D 句意:——John 在比赛中受伤了。——至少要过两周他才能康复返校吗?It will/would be +一段时间+before...“要过多久才……”,是固定句式。 甲乙两地相距160千米,一辆汽车从甲地去乙地,34小时行了60千米,照这样的速度,行完全程要多少小时?