1.这些苹果好漂亮2.上一周那些学生很快乐3.今天我们很悠闲4.我妈妈每天说英语5.我妈妈昨天说英语6.我妈妈正在说英语7.我妈妈打算明天说英语.这些都是be动词

1.These apples are so nice.
2.Those students were very happy last week.
3.We are very free today.
4.My mother speaks English everyday.
5.My mother spoke English yesterday.
6.My mother is speaking English now.
7.My mother is going to speak English tomorrow.