Question

Now our school is four times ________ it was twenty years ago.

A. when
B. which
C. that
D. what

Answer 1

答案D
考察倍数表达。实际上也是一个名词性从句的表达法。What引导起这个从句，并在句中作was的表语。句意：现在我们的学习是20年前的4倍大。