______ they grow they make sure that what is left in the ground after harvesting______ a natural fertilizer for the next year’s crop.
| A．Whatever; become | B．Whichever; become | C．Whatever; becomes | D．Whichever; becomes |
She can’t ______ having nothing to do.
| A．lie | B．stand | C．seat | D．run |
________ miss the early train, we should start right now.
| A．So as to not | B．To not | C．In order to not | D．In order not to |
_____ the hotel for the Ice and Snow Festival in Harbin has already begun.
| A．Booked | B．Booking | C．Bought | D．Buying |
We believe that _____ 2008 Beijing Olympic Games were _____ success.
| A．\ ; a | B．the ; \ | C．the ; a | D．a ; a |
The expert’s theory, _____ my opinions were based, proved right in the end.
| A．on which | B．whom | C．for which | D．that |