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Service was included in the bill, so you _______ the waiter. It was a waste of money.
| A．will not tip | B．may not tip | C．needn't have tipped | D．mustn't have tipped |
He didn’t put the things where they belonged, in case everything was out of order.
| A．that | B．what | C．whose | D．which |
From astonished look on his face, I came to realize that he had never thought the performance would turn out to be such great success.
| A．the; a | B．the;不填 | C．an; 不填 | D．an; a |
His business failure left him at the edge of desperation, but, , he managed to go out of the shadow through years of efforts.
| A．time and tide wait for no man | B．don’t count your chickens before they are hatched |
| C．no pains, no gains | D．time heals all wounds |
Canada is a country many different nationalities as well as one with foreign immigrants the majority of its population.
| A．making up of; occupied with | B．consisting of; making up |
| C．made up of; consists of | D．consisted of; taking up |
The idea for the new plan came to his mind, to his experiment in the lab.
| A．while devoting | B．while devoting himself |
| C．while he was devoted | D．while devoted |