31. The chance I had been looking forward to_______at last.
| A．coming | B．come | C．came | D．Comes |
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 |
When the entire class worked together they finished the project _____.
| A．in no way | B．in no time | C．on no account | D．in no case |