Many of the scientists and engineers are judged _______ how great their achievements are.

Mary _________a professor for half a year.

Bill always seems so confident, but ________ he’s extremely shy.

My meaning didn’t ___so I explained it a second time.

The opening province which ____ thirteen counties and three coastal cities will quicken its paces of economic   development.

If you find Tom hard ____, you’d better keep away from him.

One of the tourists ______ from the tour group. That was why the tour guide lost his temper.

The lecture was so complex that I simply couldn’t ______ at all. Could you explain it to me?

一Do you think Chinese elements in "Gravity" were included just to＿an increasingly influential Chinese viewing audience?
一I don't know, but the director denied the storyline was just to＿the booming market.

Recently the Ministry of Environmental Protection issued a circular saying that China may adopt flexible working hours and stop school classes_____the highest air pollution warnings.