The students were playing football happily on the playground ______ it began to rain heavily.
| A．as | B．while | C．when | D．Suddenly |
We are making efforts to carry out the.
| A．11-five-year-plan | B．11-five-year plan | C．11-five-years-plan | D．11th five-year plan |
I have done much of the work.Could you please finish______ in two days
| A．the rest | B．the other | C．another | D．the others |
We asked John and Jerry,but ________ of them could offer a satisfactory explanation.
| A．either | B．none | C．both | D．neither |
_______was said that_______ was how the Chinese first raised silk worms.
| A．It;that | B．People;it | C．They;that | D．Somebody;it |
—Barbara sometimes makes me mad.
— ________too.I wish she ________ a little polite.
| A．I;is | B．I;were | C．Me;is | D．Me;were |