______ another button and your meal is prepared and heated for you.
| A．If you press | B．To press | C．Press | D．Pressing |
And you find that you're not to be _____ with a position of real responsibility.
| A．offered | B．trusted | C．furnished | D．retained |
They decided to leave the waiter a big _____ because the food and service had been excellent.
| A．note | B．reward | C．tip | D．gift |
The patients believe that the doctor knows exactly how to put them _____.
| A．correct | B．perfect | C．right | D．well |
Circus tigers, although they have been tamed, can _____ attack their trainer.
| A．unexpectedly | B．deliberately |
| C．reluctantly | D．subsequently |
The _____ of his clothes indicated too clearly that he had been playing football.
| A．state | B．condition | C．occasion | D．situation |