主谓一致

观察探究

用所给词的适当形式填空，并观察主谓之间的关系。

① Following Jane’s way of studying chimps, our group _____(be) all going to visit them in the forest. ② Watching a family of chimps wake up ______(be) our first activity of the day. ③ Jane _______(have) studied these families of chimps for many years and helped people understand how much they behave like humans.

are

is

has