How soon will you start your journey? —I’m not sure. I haven’t decided_____.

What cold weather！—Yes. But it’sunusual experience for us, we normally live in a hot place.

She has written a lot of books, but_______ of them is good .

You’ll find _____ to use the computer. Even the elderly can learn it all by themselves.

You’ve chatted for nearly two hours． —Yeah. We’re talking about the things_________ happened yesterday．