A．previousB．foremostC．firstD．front

【C8】A．ForebodingB．ForemostC．ForethoughtfulD．Foregone

【C4】A．initialB．primaryC．firstD．early

The students take a ______ test in March, and the main exam is in July.A．previousB．prelimi

Hes not our______son—we adopted him when he was three.A．primitiveB．naturalC．firstD．origina

The constitution of a______society is not necessarily simple.A．previousB．precedingC．primar

【C17】A．previousB．presentC．thenD．current