Our experiment had got into _____trouble, so we decided to take _____ chance and add more water, and luckily, we succeeded.
| A．/ ; / | B．/ ; a | C．the; a | D．a; a |
With the environment worsening, the government ______ people for more environment protection．
| A．reacts to | B．appeals to | C．refers to | D．leads to |
The party was meant to be a surprise to everyone who would take part, but one of the organizers _______ the plan．
| A．gave away | B．gave out | C．gave up | D．gave back |
I would appreciatevery much if you could send me a few copies of the mechanic design of your new model.
| A．it | B．that | C．this | D．you |
--- I’d like to try something different as I’ve got tired of watching cartoons all the evenings.
--- __________
| A．Go ahead. | B．It depends. | C．What for? | D．Like what? |
––I didn’t go to work yesterday because my car broke down.
––You _____ mine. I wasn’t using it then.
| A．might borrow | B．should borrow | C．must have borrowed | D．could have borrowed |