问题

___thefact that doctors have warned that smoking causes cancer, people still keep onsmoking

A:that
B:which
C:when
D:where

正确答案是：

同类题型

The meaning of the word “nice” changed a few times it finally came to include the sense “pleasant”.

下列各项中，划线字的字音全部正确的是

Be careful with the machines and you ______ touch any of them!

I’m sure I _____ her four years ago

y is apublic holiday, ___ children should get close to nature －But most ofthem have several lessons to attend