—_____ is it from your home to school?—It’s about ten minutes’ walk.A. How far B. How long C. How often
The kids are looking forward to ______ Spring Festival.
Everyone in the class studied very hard since no one wanted to _____. A. fall down B fall off C. fall behind D. fall out
No matter how hard it is, just go on and never ____.
While you are doing math exercise, put a calculator(计算器) ____ to help you.
Here you are! This is one of the keys ____ the lock.