--- Perhaps we can go to the home for the elderly to do some voluntary work.----______ We should give the elderly a warm hand as often as possible.
Tom likes playing ___ football, but his sister likes playing __ piano.
----Mary won the first prize in the competition. ----_________. She said she made several terrible mistakes.
Sam didn’t want to have diner. He just drank some milk.
When you leave, please turn off the light _____energy(能源).
Allen TV in the living room when I home yesterday.