China has the _____ population in the world.
The West Lake in Hangzhou is a good place ________sightseeing.
----What do animals eat? -----Some eat ______ and some eat _______.
Please stop _________.It’s time for class.
-----What _______ he _________like? -----He’s tall and thin.
----Which is your teacher? ----The one ________ thick glasses over his eyes is.