关于蓝藻和蛔虫结构及代谢特征的比较,正确的是
You ________ cross the road when the traffic lights are red.
---- go swimming with Dad , Mum? ----No ,you needn’t. You can go bike riding.
--- Who’s singing in the bathroom? --- It ________ be Mr. Brown. Nobody sings like that except him.
—You_________ be happy with the strong public support you’ve received. —Yes, you’re right. I’m really excited.
()—Sandy, we need an actor for the action movie. __________ you play kungfu? —Sorry, I can’t.