The study of natural history is not something to be left to biologists. In fact, their capacity _____ the time they can spend away from their offices is very limited.
| A．in search of | B．in face of | C．in favour of | D．in terms of |
Henry would rather his mother________ in the school where he is studying.
| A．not work | B．not worked |
| C．didn't work | D．not working |
—I find it astonishing that your deskmate ________ be so rude to you.
—Not astonishing at all. She is always rude to anyone else.
| A．should | B．must | C．might | D．ought to |
－It's getting dark. I must be off now.
－OK, please take care and ________ my best wishes to your family.
| A．accomplish | B．clarify | C．preserve | D．Convey |
The education program ________combining brain work with manual labor is being widely spread throughout the country.
| A．to aim at | B．aims at |
| C．having aimed at | D．aimed at |
Even in winter the roadsides were places of beauty, ________ countless birds came to feed on the berries and on the seed heads of the dried weeds rising above the snow.
| A．which | B．when | C．where | D．What |