The changes in our chemistry lab will cost quite a lot, ____ they will save us money in the long run.
He suggested that she ____ the coat at home.
What great trouble we had ____ where his house was.
Not until I began to work ______ how much time I had wasted.
Unless ___ to speak, you should remain silent at the conference.
Although this medicine can cure youyour illness, it has a bad effect____you.