We may find that learning a foreign language does not have to be________learning our mother tongue,but can in fact be twice ________.
On snowy days, you have to drive very to avoid traffic accidents.
—You may find the key to the maths problem on page 107. —Ah, it’s so simple. I wonder why I _of that.
The long and tiring talk, filled with arguments and quarrels, ended in disorder, _________ no agreement at all.
Many people in the city wonder _____the city officials have the information they need to solve the problem.
So difficult _____ it to adjust to an English-speaking environment that he determined to learn English hard.