Question

A new study has found no evidence that the sunscreen, commonly used to reduce the risk of skin cancer, actually____ the risk.

A．increase

B．increasing

C．increases

D．having increased

Answer 1

C

考查句型结构。根据句子结构可知该词作句子的谓语。句子完整机构为是the sunscreen actually increases the risk。 commonly used to reduce the risk of skin cancer作the sunscreen的定语。