They were________their invention．They thought they could invent more things to make our life easier．
| A．angry with |
| B．proud of |
| C．strict in |
| D．tired of |
--- Do you know the boy________ is sitting next to Peter?
--- Yes. He is Peter’s friend. They are celebrating his ________ birthday.
| A．who; ninth | B．that; nineth | C．/; nineth | D．which; ninth |
--- I think eating more vegetables is good _______ our health.
--- Yes, I agree _______ you.
| A．at, to | B．to, to | C．for, with | D．for, to |
________of the chemical factories in their city _________pouring waste water into the river. It’s too dangerous.
| A．Two fifths; are | B．Two fifths; is | C．Two fifth; are | D．Two fifth; is |
—How much will you be paid?
—Tom, I do it not for money, but for experience. ____, it’s a kind of volunteer activity.
| A．However | B．Besides | C．Finally | D．Possibly |
It’s _______ MP5 . It can be used to listen music and watch movies . It’s ________ useful invention .
| A．a ; a | B． a ; an | C．an ; a | D．an ; an |