Whenever we are in trouble we should never loseheart.A. a; theB. a; aC. /; /D. /; the

问题补充：

Whenever we are in trouble, we should never loseheart.

A. a; the

B. a; a

C. /; /

D. /; the

答案：

A. a; the

B. a; a

(答案→)C. /; /

D. /; the

解析：考查冠词。be in trouble在困境中；lose heart灰心。句意：无论什么时候我们在困境中，我们都应当绝不灰心。