What __ public is concerned about is whether the scientists win be able to find _____ cram for the disease.
My visit to your school is really an unforgettable experience, ________ I will treasure for ever.
________ giving a general introduction to computers, the course also provides practical operation.
That coat fits me, but I can't afford to buy ________. I have to choose ________ that is cheap enough for me.
Difficult conditions will sometimes ________ a man's best qualities.
The process of growing up is complex for every person, ________ there are many influential factors in a person's growth as well as the development of his personality.