The question is too difficult and we found ________.
| A．it not easy to answer it | B．it was not easy for us to answer it |
| C．it’s not easy to answer | D．it not easy to answer |
----I’m frustrated after so many failures. I can’t see any hope.
----Behind every misfortune!
| A．does an opportunity lie | B．is an opportunity lying |
| C．lies an opportunity | D．an opportunity lies |
It ispleasure for us to make a graduate address inpresence of thousands of students in the graduation ceremony.
| A．不填; a | B．the; 不填 | C．a; the | D．the; the |
--- I’ve got your invitation. --- Oh, good. ______
| A．Thanks a lot | B．Can you come? | C．I’ll take it | D．May I help you? |
--- Can you find me _______ symbol of China? --- ______ Great Wall.
| A．不填, 不填 | B． a, A | C．a, The | D．不填, The |
Bob ________ with us together since he came to our school.
| A．have worked | B．has worked | C．worked | D．will work |