ing to the investigation, the D-train accidentresulted from the fact that the authorities concerned didn’t _________ enoughimportance to the safety of the signal equipment.

out A【解析】试题分析：考查词组辨析：

It was not yet dawn ______ the boy got to the school.

___ yournew desk-mate —Well, she isnice except that she talks a little too much

ntists are trying to developa special material, _______ they will make use of in space