If you ________ too much time playing online games，your mother ________ angry.

This history book is of great value.— Exactly. _____ can be enjoyed from it ______ you have a deep understanding of it, however.

The twin girls killed their parents______ cold blood[ ]

Chinese astronauts can also walk in space now.—Yes, they’re our nation.

The boy always looks . Now he’s looking at his new drawing.