问题

We haven’t settled the question of ______________ it is necessary for him to study abroad.

A:if
B:where
C:whether
D:that

正确答案是：

同类题型

We shouldn’t ignore what happens________it is difficultfor us to accept some stories.[ ]

One of my teachers ____ an Englishman.

call him later.

Everyone should do something wild animals.

Is this _______bike No.________ is over there.