Simply learn to live in the present, ________ think so much about the future or the past.
His mother was born in Greece, and Greek was her native language, ___.
While reading, you’d better make a mark ___ you have any questions.
Don’t keep your mouth ___ if you want to improve your spoken English.
My classmate, Li Ming, was highly praised for ___ a good deed.
Sunglasses can ___ us from strong sunlight. A. hold B. prevent C. protect D, make