【推荐2】我们班很多同学花费大量时间来做家庭作业。(amount)
Lots of students in our class spend ________ doing homework.

【推荐3】人类是唯一会对情绪作出反应而流泪的动物，大多数人说好好哭一场会让他们感觉更好。
Humans are the only animals that produce tears ___________ ____________ ___________ emotions, and most people say a good cry makes them feel better.