27.If you ________ to something different, for example to a different system, task, or subject of conversation, you change to it from what you were doing or saying before.
| A．switch | B．appeal | C．submit | D．adapt |
________ on their last legs, the enemies still thought they were unconquerable.
| A．As though | B．Even though |
| C．In case | D．As soon as |
The United Nations says hunger kills more people every year than AIDS, malaria and tuberculosis ________.
| A．combining | B．combined |
| C．being combined | D．having combined |
--- What happened to the young trees we planted last week?
---The trees _________ well, but I didn’t water them.
| A．might grow | B．must have grown |
| C．would have grown | D．would grow |
Dad was afraid that such a small loaf of bread won't ________ among this large family.
| A．go out | B．go ahead |
| C．go far | D．go off |
I know what I shall be doing for the next three years but I haven’t thought _______ that.
| A．without | B．for | C．against | D．beyond |