What do you know about Bill Gates—As far as I know，when he was a child，he showed a________of interests in everything around him

．She doesnot speak our language, she seems tounderstand what we say.

Every detail should be thought of _______that nothing unexpected happens again

_______the sun was not yet up, many people were already taking exercise in the square

il deals, the two countries signed agreements covering biofuel development and the joint launch of two satellites.