Don’t ____sad(伤心难过的). Let’s go and fly a kite.
It took us _______ to finish the new research project.
---Though Mike is _________ boy, he can say many words. ---How clever!
---How is this kind of hamburger? ---It tastes ______ and sells ______.
They go to school __________6:40 _________ Monday morning.
Please give ________ a glass of milk.