It’s necessary ______ us to keep our pets clean everyday.
A、ofB
暂无解析
The car is _____ expensive _____ he can’t buy it.
I’dliketohavealongholiday,butI’mreallytoobusyto_____thetime.
We all found_____ to play the game.
It happened in front of a fruit and vegetable ____in my neighborhood.
—Have you finished the work?
—Not yet, but no matter how hard it is, we'll keep ___ until we make it.
