I didn’t go to the opera because the ticket was ____ expensive for me[ ]

Foreign Minister of China used plain language to make the Chinese foreign policy ________ to the whole world at the press meeting last week.[ ]

We are going to take the high-speed train to Xi’an tomorrow, so an early arrival at the station____________ .

________ the Internet is bridging the distance between people, it may also be breaking some home or will cause other family problems.

Either you or I _______ right.