问题

There is no doubt _______ nearsightedness is a serious problem among the youth of our country.

A:/
B:which
C:whether
D:that

正确答案是：

同类题型

Can you hand in your composition tomorrow— Sure. ________it handed in on time, I’ll stay uptonight.

On my way home,I saw a young man with ____shoulders trying to find out how____ the river is bywalking across it. [ ]

Everyone in Britain the story Alice’s Adventures in Wonderland.

The novels written by the author sell best, but five years ago no one could have imagined how great a role he _____in the literary (文学的) world

________ I regret most is that I have promised to make friends with the dishonest girl