6.Our teacher often encourages us to work (work)hard to achieve our dreams. 7.The_popularity (popular)of online shopping has risen around the world. 8.Which invention (invent)does Luke like better,the bike or the car? 9.-Please don't smoke here.Look at the sign. -Sorry,I didn't notice (not notice). 10.The leaves (leaf)on the trees turn yellow in autumn. 导航页导航页 6.Our teacher often encourages us __________(work) hard to achieve our dreams. 7.The__________(popular) of online shopping has risen around the world. 8.Which __________(invent) does Luke like better, the bike or the car? 9.—Please don’t smoke here.Look at the sign. —Sorry, I _______________(not notice). 10.The __________(leaf) on the trees turn yellow in autumn. to work popularity invention didn’t notice leaves