You’d better not leave the medicine ____ kids can get at it. A. even if B, which C, where D. so that
In this experiment, the famous professor showed three different____ to the study of physics.
_______the match is lost? We can fight again!
These achievements_______ without the contribution of Qian Xuesen, a key leader of the New China's nuclear, missile and so on.
I made a fire ____up the room as soon as my father came in.
The scientists predict that if present trends____, women in 400 years will be 2cm shorter and have healthier hearts.