—How can we protect ourselves _____ the earthquake?—First, we should keep calm when it happens.
.---_______is Daming going to lie on the beach?---Because he wants to enjoy the sun.
---_______?---I am going to visit my uncle.
---_______are you going to see your mother?---By train.
There_____a pen and two books on the table.
---______do you need?---Size 6.