【C5】A．OnlyB．RarelyC．EvenD．Frequently

A． ButB． HoweverC． EvenD． Though

Cement was seldom used in building during the Middle Ages.A．crudelyB．rarelyC．originallyD．s

【C9】A．HoweverB．ThereforeC．EvenD．But

【C3】A．largelyB．rarelyC．merelyD．really

This kind of material was occasionally used in making shoes.A.neverB.rarelyC.oftenD.usual

【C9】A．exceedinglyB．rarelyC．evenlyD．fairly