.The teacher recommended that every student England party.A. took active part in B. takes active part in C. take active part in D. would take active part in
The world’s elderly population will exceed(超过) ____ of children by 2060,when each group ____ to account for about one fifth of the population.
Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire.
My friend Mary is _____ beautiful girl and _____ girl everyone likes to work with.
—Do you let your kids travel by themselves at night? —________! It couldn’t be more dangerous.
-What do you think of the party last night? -Wonderful! It’s years I enjoyed myself so much.