It’s cold, so we decided ______at home.

________ in health，he persisted in doing the experiment[ ]

Some students often fight with each other just because of small things in daily life．It is important for students to learn how to _____________each other．

Does Wu Qiang study harder than Li Guang —_______. Li Guang studies harder.

If you want to find some information about a foreign country, you can ask your friends _______ have been to that country