— She looks very happy. She __________ have passed the exam.— I guess so. It’s not difficult after all.
____ matters most in learning English is enough practice.
If Joe’s wife won’t go to the party, ____.
After two years’ research, we now have a ____ better understanding of the disease.
____ he had not hurt his leg, John would have won the race.
We all know that, __________, the situation will get worse.