. If you can’t release your unpleasant past, you may create a vicious cycle(恶性循环) negative influence and feelings are reinforced(加强 ).
----Did Jack come back early last night?------Yes. It was not yet eight o’clock____ he arrived home.
Almost every country is increasing the price of cigarettes____ reduce smoking.
____many times, he still didn’t understand it.
Would you like some chocolate?--I’d like some, but I’m _____
Pop music is ____ an important part of society____ it has even influenced our language.