一Hello! May I speak to Li Lei ?一Sure. __________
_____the teachers in their school is about 200 and one fourth of them are _____ teachers.
---Have you heard the good _______?---Yes! The radio says China will send an explorer(探险家)to Mars.
The ___ man told us his past days before he ____. His __ made us very sad.
My friend Tom _______me __________ for an hour yesterday.
The dogs were made __________ as fast as they could.