--Students should devote most of their time to studying rather than playing computer games.  ---________. No pains, no gains.

Because he works far away from his parents, he visits them only_____.

We don’t have to keep these old chairs any more. ________, they are falling apart（支离破碎）.

I'd like the colour, but I’m afraid it’s ___expensive.

Running a company is not _______ a matter of hiring people — they also need to be trained.