? Do you know the most ancient city in China ─ Xi’an well? ? No, this is the first time I ___________ here

It’s a mistake to think of Florida only ______ its tourist attractions.

el all the training a waste of time, but I’m a hundred percent sure later you’ll be grateful you did it.

Researchers have found clear and convincing evidence ________ happiness isthe key to better health and longer lives

Everyone in our class likes Mary because she is good at telling and ______ jokes.