— Is Jack in the next room?— Well, it’s hard to say. But I heard him ________ loudly when I passed by just now.
---Would you like me to take you to the new park? ---__________. I’ve been there once.
It is said that the meeting _______ for a week.
--I hear this kind of CD-ROM is very popular. --Let’s buy one before it ____________.
This problem is ______ difficult __________.
_____ hard work it is! But _____ fun it is to finish walking the trail.