Maybe if I _______ literature, but not science then, I would be able to give you more advice now.
The first use of atomic weapons was in 1945, and their power increased enormously ever since.
It was reported that 8 policemen were sent to the forest the missing girl.
Scientists are convinced _ the positive effect of laughterphysical and mental health.
--- Smoking is bad for your health. --- Yes, I know. But I can’t.
--- What’s wrong with Mr. Brown? --- He said he would come at nine, but he didn’tat that time.