My parents will work _____ the farm ______ the morning of June 15.
I find this Math problem very ___ _. I believe the students can work it out .
The number of students in our school _______ 4,000 and a number of them ______ good at playing Ping-Pong.
You must be tired now. Why not ___________ a rest .
___________ you are, ____________ mistakes you’ll make.
Nanjing is bigger than ______ in Jiangsu and bigger than _______ in Chongqing.