He ____ all the runners and _____ the race.

You ___ do it even if you don’t want to. [ ]

We shouldn’t ________ the trees anymore. Instead, we should plant more trees.

China began to open to the outside world in the late 1970s. _________, there have been great changes in the country.

ding to the law, all foreigners have to ________ with the local police within two weeks of arrival