22. Now the world’s attention ______ the stocking markets, as they have great influence in the world’s economy.
| A．is fixing on | B．has fixed on | C．is being fixed on | D．had been fixed on |
Scientists are convinced_____the positive effect of laughter_____physical and mental health.
| A．of; at | B．by; in | C．of; on | D．on;at |
This is a junior school.You should go to a senior school _____girls of your age.
| A．for | B．about | C．from | D．to |
I saw a woman running toward me in the dark.Before I could recognize who she was，she had run back in the direction______ she had come.
| A．of which | B．by which | C．in which | D．from which |
-Can he take charge of the computer company?
-I’m afraid it’s______ his ability.
| A．beyond | B．within | C．of | D．to |
—It’s a top secret.
—Yes, I see. I will keep the secret _____ you and me.
| A．with | B．around | C．among | D．between |