Why do you always watch Channel 10 instead of Channel 5, Grandpa? —The programs on Channel 10 are ______ better.

We find ______ fast and comfortable to travel by plane.

Must I work out the problem right now?—Yes, you _______. It’s very serious.

It’s difficult to live in a foreign country, ________ if you can’t understand the language there.

The public is requiring the Malaysian government to share________ Flight MH370.