Question

They looked _____ each other and kept their secret _____ themselves.

A．for; to

B．at; for

C．at; to

D．out; at

Answer 1

B

句意：他們互相看著對方并且為他們自己保留著他們的秘密。Look at 觀看，look for 尋找，look out 當心，第二空用for表示目的，故選B。