Lawrence Craven, a doctor from the USA, is the author of several published reports, one of which introduced the idea in 1953 ________ aspirin could reduce the risk of heart attacks by thinning blood.
| A．when | B．where | C．that | D．which |
I could just see a car in the distance, but I couldn't ______ what color it was.
| A．look out | B．make out |
| C．get across | D．take after |
So many uses have been discovered for this wood ______ the supply of white pine is becoming smaller and smaller.
| A．then | B．what |
| C．that | D．which |
A study shows that students living in non-smoking dormitories are less likely to ______ the habit of smoking.
| A．pick up | B．turn up |
| C．draw up | D．make up |
I can hardly imagine so pretty girl like you ______ boxing.
A. like B. to like
B. liking D. to have liked
The captain ordered the crew to throw ______ the side of the ship all heavy guns and even stores in order to raise the boat in the water.
| A．on | B．through |
| C．across | D．Over |