Though we are not walking slowly, I still think that it won’t be _________ he _________up with us

24．He rose to speak, _________ to with great attention

It s unbelievable that so young a professor ______ make such great progress in the scientific field.[ ]

He isn’t an honest manYou can’t believe anything ______ he says

If I work hard at all my lessons from now on, will I do better in them—Sure, ____________________.