Not until the motorbike looked almost new ______repairing and cleaning it.

．—–Tommy is planning to buy a car.—-I know .By next month, he______ enough for a used one

This is ______ Li, he is my English teacher.

____ he referred to in his article was unknown to the general reader.

he H1N1 virus____ at first in Mexico,no one had the least idea that it would spread so rapidly throughout the world.