________ matters most in learning English is enough practice.
Only when the European countries' financial system broke down _____to take measures to deal with those problems.
He, an average citizen, always thinks of_____ he can do more for the people.
Children under sixteen are not permitted to participate in such kind of activities _____ bad for their mental development.
I always _____ on life when listening to Beethoven’s symphony.
—I’m fed up with this rain. How I wish to go hiking this weekend!—Forget it. I’m afraid the wet days will _____.