____ we have finished the course, we shall start doing more revision work.A. For B. Now that D. By now D. Until
Bill is not a fast runner and he doesn't have a chance of winning the marathon, but he will _____ the race even if he finishes last.
The store had no more red shoes _____, so Mary chose brown ones instead.
Don't go too far into the sea, children, or the waves will _____ you off your feet.
He was _____ by a bee when he was collecting the honey.
A landing on Mars is within the _____ of current physical theory.