如果你不能控制你的狗，就给它系上狗链！

If you can't ___control your dog, put it on a leash!

这个开关控制温度。

This switch ___controls the temperature.

这部电影讲述了一个在河里发现的戒指，用来控制世界。

The movie was about a ring which was found in the river and used to ___control the world.