The environmentalists said wild goats’______ on the vast grasslands was a goodindication of the better environment.

These shoes aren’t comfortable. You __________ wearthem.

It took us ________ to finish theexperiment on the monkey

It was not until I failed in the test ______ I realized I had wasted too much time instead of preparing for it fully.

Have you ___ your father to giveup smoking —No. I _____ . but he wouldn’t listen .