Many ____ trees must be planted every year.

More trees must be planted every year.(改为一般疑问句) 连词成句：must,every,planted,trees,more,be,year(句号) Many ____ trees should be planted on the mountains. trees are planted in our city every year. How many apple trees _next year?Aare planted Bwere plantedC. ______young trees must be planted on the hill 1.Many _______ trees should be planted on the mountains. 英语翻译是with many trees to be planted 还是 with many trees to pla There are many trees planted Trees are planted every year.这句为什么要用被动语态 in great danger,we cut down many trees every year. No trees ___ planted last year.