28. The kind-hearted woman made _______ her duty to look after all the old people there.
| A．this | B．that | C．one | D．It |
Many rules in English are ______, and large numbers of students feel ______ them.
| A．puzzled; puzzled with | B．puzzling; puzzled about |
| C．puzzled; puzzling with | D．puzzling; puzzling about |
He had to have the washing machine _________ last night.
| A．to mend | B．mending | C．mended | D．being mended |
You________ drink it, for it is poisonous.
| A．can’t | B．needn’t | C．may not | D．mustn’t |
They made a bet _____the white horse.
| A．for | B．with | C．on | D．in |
We decided to ______ a chance on the weather and have the party outdoors.
| A．make | B．take | C．have | D．pick |