A mistake ______ have been made on our bill. We didn’t order any fish today.
| A．should | B．would | C．could | D．must |
The story is about ________ life of Obama, who is ________ 44th President of the United States of America.
| A．a; the | B．a; a | C．the; the | D．the; a |
Kathy ___ a lot of Spanish by playing with the native boys and girls.
| A．picked up | B．took up | C．made up | D．turned up |
Everybody in the village likes Jack because he is good at telling and ___ jokes.
| A．turning up | B．putting up | C．making up | D．showing up |
I work in a business ___ almost everyone is waiting for a great chance.
| A．how | B．which | C．where | D．that |
Last moth, part of Southeast Asia was struck by floods, from ___ effects the people are still suffering.
| A．that | B．whose | C．those | D．what |