We can’t take part in the competition ________ we get our student card.
If you let challenges and difficulties benefit depress you, much more can be accomplished than you thought possible.
—Remember the first time we met, Jim?—Of course I do. You ________ in the library.
—My shirt is torn. —______me a needle and thread, and I’ll fix it for you.
—Volunteering is becoming popular in China .—Yeah, people are now aware that helping others is helping themselves.
Most students expect ____more review classes before the exams.