1、She 【prefers】(prefer) lemons to oranges.
三单
2、It has become a more popular sport for people【to watch】(watch).
for sb to sth 供某人做某事
3、It's【believed（这个不是很确定）】(believe)that on Dec.21th,1891,the first basketball game in history【was played】(play).
篮球是被打的,所以要用被动
4、Who do you think is【the most popular】(popular)boy in your class?
班级人数超过3个,用最高级
5、Jane liked cooking better than washing clothes.(改写句子,句意不变）
Jane【preferred】cooking【to】washing clothes.
6、人人都知道毛衣是防寒的
Everyone knows sweaters【are used to keep】warm.
7、昨天晚上我不知道谁拿错了我的包
I don't know who【took】 my backpack【by mistake】 yeaterday evening.
8、在英语课上,我们常被分成一些小组
We【are】usually 【divided into】 some small groups in our English class.
9、即使天在下雨,我们仍旧看得见从森林里升起的黑色浓烟
Although it's【raining】,we still can see the thick black smoke【rising】from the forest.
10、所有的信息都落入了他的手里,我很生气.
I‘m angry all the information【is】already 【held in】 his hands.