There are _________ ten rooms in his house.
Rome was not built in one day.You should set _____goals and work hard to achieve them.
Nowhere in nature is aluminium (铝) found free, owing to (由于) its always____with other elements (元素) most commonly with oxygen.[ ]
Many tall buildings _______ in Shengsi in the past few years
I heard they went skiing in the mountains last winter.— It ________ true because there was little snow there. [ ]