Some parents are just too protective. They want to ______ their kids from every kind of danger, real or imagined. 
| A．spot | B．dismiss | C．shelter | D．distinguish |
I like these English songs and they ________many times on the radio.
| A．taught | B．have taught | C．are taught | D．have been taught |
—Did you see a man in black pass by just now?
—No, sir. I ________ a newspaper.
| A．read | B．was reading | C．would read | D．am reading |
-----Did you watch the basketball match yesterday?
-----Yes, I did. You know, my brother ________ in the match.
| A．is playing | B．was playing | C．has played | D．had played |
He hesitated for a moment before kicking the ball, otherwise he ______ a goal.
| A．had scored | B．scored | C．would score | D．would have scored |
--- Why is Jenny still standing there? It’s so cold.—She _____ for someone.
| A．can wait | B．might have waited | C．must be waiting | D．should have waited |