—Your brother is an excellent basketball player.—So he is. He_____ to play basketball three years ago.A. has started B. starts C. started
____ 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.