China's reform and opening has been going on for ________ is like about 30 years now and it's really quite remarkable.

Life is like a tale. ________ matters is not how long it is, but how good it is.

It hasn't been made clear     ________  the new underground line is to be open to traffic.

The tour pal lost his way in the mountain; ________ made things worse was that it began to rain.

—Sir, I feel it complicated to apply to a university abroad.
—Why not read our guide? This is  ________ the relevant information is available.

The problem is ________ sometimes when we are given something on a constant basis, we start to take them for granted and forget being thankful for what we already have.

Inside the White House, there is a room called the Oval Office. That's ________ President Obama works.

________ I regret most is that I have promised to make friends with the dishonest girl.

We can find out ________ all the excitement is about by playing QQ's “Happy Farm”．

—How do you think I can make up with Jack?
—Set aside ________ you disagree and try to find what you have in common.