Some so-called climate travelers _______ in one place for a few months and then move on to some other places as the weather changes

What do you think your life will be like________ twenty years—Yeah.I have thought about it________ three years.

Doctors recommend that all children ________ vaccinated against measles(麻疹).

_____ you may have, you should gather your courage to face the challenge.[ ]

I must apologize for_______ ahead of time.–That’s all right.[ ]