Question

 (2011年浙江溫州聯(lián)考)The fact has worried many scientists________the earth is becoming warmer and warmer these years.

A．what                     B．which

C．that                       D．though

Answer 1

解析：選C�？疾槊~性從句。句意：近年地球越來越暖的事實讓許多科學(xué)家擔(dān)心。從句“the earth is becoming warmer and warmer these years”不缺少成分，因此選C項。that引導(dǎo)的從句作fact的同位語。