--What color is the ruler?-- ________A.It's a ruler.B.It's white.C. It's a white.
When I was working on a Maths problem, a good idea went ______my head.
There ______ a large number of students in our school. The number of the students_______ over three thousand.
Shanghai is _____the east of China. Japan is ______the east of China.
— Lucy, isn’t the talk boring? —_________. You can learn a lot from it.
I hope you _________ good results in the exam.