______ for the free tickets, I would not have gone to the films so often.
| A．If it is not | B．Were it not |
| C．Had it not been | D．If they were not |
I don't mind picking up your things from the store. _______,the walk will do me good.
| A．Sooner or later | B．Still | C．In time | D．Besides |
He must have finished the work by the end of last month, _______ he?
| A．mustn't | B．hadn't | C．didn't | D．hasn't |
Despite her illness, she had lost _______ of her enthusiasm for life.
| A．not anyone | B．none | C．Nothing | D．not all |
_______ the task on time, he was fired by the boss.
| A．Not completed | B．Not having completed |
| C．Not have completed | D．Not being completed |
I admit that there are problems, _______I don't agree that they cannot be solved.
| A．While | B．If | C．In case | D．Before |