5 表示球类，棋类等运动的名词前 He likes playing football/chess. 6 与by连用表示交通方式的名词前 We went right round to the west coast by ______ sea instead of driving across ______ continent.

A. the; the B.不填；the C. the; 不填 D. 不填；不填 7 以and连接的两个相对的名词并用时 husband and wife, knife and fork, day and night 8 表示泛指的复数名词前 Horses are useful animals.