It is doubtful whether anyone can be a truly ______ observer of events.A．inadequateB．impas

It is undoubted that There is no doubt that什么意思

Which of the following tag questions is INCORRECT？A．There is no doubt about it, is it？B．No

I am doubtful whether I can solve the puzzle, but I ’llhave a ____ at it.A) shootB)

Learning how to write is like taking a course in public speaking. I ’d ask whether anyone

阅读理解There is no doubt that man is a member of the animal kingdom.Anyone who has th

His honesty is _______ nobody can doubt it.