问题

It is uncertain ______ side effects these weight-loss drugs will bring about, although hundreds of thousands of patients have taken it.

A:that
B:whether
C:how
D:what

正确答案是：

同类题型

It’s generous _______ him to give so much money tocharities. Now he thinks it’s important _______ him to help people in poorareas.

The two things are the same in outward form but different _____

填入下面的一段文字横线处的语句，最恰当的一句是（）微信最开始是一个社交软件，发展到现在已经成为一个综合性平台，给人们的生活带来很大的影响。到了微信4．0．腾讯开始了向平台化方向发展的战略部署，，，，，，，让沟通更加轻快便捷。①随着开放力度的加大②提供更多附加服务③构建一个集邮件、短信、SNS、即时通讯等应用于一身的个性化立体式通讯服务平台④微信将加速社交、游戏、电子商务等更多领域的第三方优质应用从PC端向移动互联网环境的平移和整合⑤不断将其他应用引入微信开放平台⑥为用户带来更多基于微信平台的应用

You seem to have had that car for years.—Yes, I should sell it ________ it breaks down.[ ]

（江苏省海安市2009学年度高三摸底，27）—Your sister nearly _______ all her spare time to her study during the three years. —-That’s right， or she ________ the first place in her school in the College Entrance Examination.