— ?—They are reading books.A、What do they doB、What did they doC、What are they doing
If I watch the animals ______, I'll get ______for my class report.
Whathonest boy! And he isbest student of all.
---Is this ______ English book? ---No. ______ is at home.
Look! ______ ducks are coming here.
Take your maths book, Jim. Don’t ______ it at home again.