Birds singing is sometimes a warning to other birds away.
| A．Stay | B．staying | C．stayed | D．to stay |
I’m afraid Mr. Harding ______see you now. He’s busy.
| A．can’t | B．mustn’t | C．shouldn’t | D．needn’t |
The old man has four sons, and two _____ turned doctors．
| A．of which | B．of whom | C．of them | D．of that |
—Thank goodness, you are here! What _____ you?
—Traffic jam..
| A．kept | B．is keeping | C．keeps | D．had kept |
_____with so much trouble, we failed to complete the task on time.
| A．Face | B．Facing | C．Faced | D．To face |
—It’s reported that over 1 billion people watched the live opening ceremony of_____ 2010 South Africa World Cup on TV.
—Yes, news came as_____ shock to me.
| A．the; the | B．/; a | C．the; a | D．a; the |