Question

The landscape photographer is _______ the lighting conditions that are present at the time of 
the shoot.

A．at the expense of	B．at the risk of
C．in the way of	D．at the mercy of

Answer 1

D

短语辨析。A.以……为代价    B.冒着……的风险
C.关于……方面  D.受……支配。根据题意，风光摄影受现场拍摄环境的照明条件影响。故选D。