Do you think ________ necessary to take the second turning?
Detective Wang, please trust me, I have ______to do with this case..
Our Chinese teacher encouraged us _______ up even if we made a serious mistake in our writing work.
He has spent as much time as he has _______ English in the morning.
We're not sure if it _______ tomorrow. If it _______, we won't go hiking.
It’s _______ good weather _______we can go out to enjoy a pleasant picnic.