.Just as I was leaving the classroom, it ________ to me that I forgot to turn the lights off.
| A．happened | B．occurred | C．hit | D．struck |
Flight 3010______,I must be off now or I’ll be late.
| A．to announce | B．is announced | C．is being announced | D．announced |
Their belief is that this is the only way for many of these nations______their painful pasts.
| A．escaping | B．to escape | C．escaped | D．escape |
The people from all over the world demand that reforms______.
| A．have been done | B．be done | C．are done | D．might be done. |
Who is it______have the most important role to play in stopping Yellow River erosion?
A,whoB.that C.which D.whom
He_______his million and found different way to be happy in his life.
| A．turned his back to | B．turned back on | C．turned backs on | D．turned his back on |