When and where shall we meet tomorrow? —Let’s _______ it 3:00 p. m. at my home.

This kind of computer was _____ expensive _____ we had to buy another kind. [ ]

Do you know the girl______Mary Smith? —Yes. She’s my friend.

The panda is a kind of animal _____ can be found only in China.

Try to sing some English songs, you’ll find it interesting _____ a foreign language.