theory

The book is worth ______ a second time.

If the teaching doesn’t _______ to your students, your students will gradually lose interest in it.

Traditionally, Chinese people _____ the Chinese characters Double Happiness and stick them onto walls or doors for weddings.

Due to the policy of free highway fees on major holidays, too many passenger cars are trapped on the highways, causing heavy traffic jams, some even _______ for several hours.