It’s difficult to live in a foreign country, ________ if you can’t understand the language there.

—Can I talk to you for a minute?　　         —Sure. I have ______ time.

—_______ do you usually go to school?— On foot. 

--- English is _________ so difficult to me. I can’t learn it well.--- Don’t give up(放弃).

 If you want to know the meaning of the word______, you’d better look it up in the dictionary.