Don’t forget to brush your _________／ti: θ／before you go to bed.

“Great achievements can be done in _______ with nature, ” Schworer said.

Dream of the Red Chamber is _____ worth _____ because we can learn a lot about the noble families in the feudal society.

Of the two T-shirts，I’d choose the ___one to save some money for a book.

It is said that the gravity on Mars is only aboutof the gravity on earth.