So difficult ________ it to live in an English-speaking country that I determined to learn English well.
Jerry did not regret giving the comment but felt ______ he could have expressed it differently.
One learns a language by making mistakes and ______ them.
By the time you have finished this book, your meal ______ cold.
—Look at those clouds!—Don’t worry. ______ it rains, we’ll still have a great time.
Don’t handle the vase as if it ____ made of steel.