New year is a good opportunity for families and friends to ____together.

In the end, he realized the ____of foreign languages.

Time is ____by hour, minute and second.

The good news got_____from the audience.

A. Cheer
B. Cheers
C. common

It’s an _____ to sing “Jingle Bells” at Christmas.

A. cheer
B. festival
C. tradition

In some way, he _____several of his friends in the trouble.

A. involved
B. celebrated
C. invented

Waterfalls can be used to produce_____power.

A. electric
B. ancient
C. western