It’s kind _____you ________us with so much work.A. of; to help B. for; help C. of; helping
The letter _______ I received from him yesterday is very important.
---Does the teacher know everybody _______ planted the trees?· ---Yes, he does.
I don’t know if he tomorrow. If he , I’ll meet him.
We won’t put off our plan __________ it snows heavily tomorrow.
______ he talked with her for a long time, he failed to convince(说服)her.