I dropped my key in the garden, but luckily my mother ________it.
| A．located | B．knew | C．recognized | D．spotted |
That region has a lot of natural resources while this one has ________.
| A．none | B．something | C．all | D．nothing |
—Do you love teaching, Miss He?
—I fell in love with teaching in 2000. I ________ for twelve years by this summer.
| A．will teach | B．would have taught |
| C．has been teaching | D．will have been teaching |
You didn ’ t let me drive. If we _____ in turn, you ______ so tired.
| A．has left; comes | B．drove; wouldn’t have got |
| C．were driving; wouldn’t get | D．had driven; wouldn’t have got |
His writing is so confusing that it's difficult to make out ________ he is trying to express.
| A．what is it | B．what is it that | C．what is that | D．what it is that |
It’s extremely dangerous for the drivers to _______ speed as the traffic lights are changing．
| A．pull up | B．put up | C．rise up | D．pick up |