当你在电话里介绍自己时,你应该说:______A.Hello. This is Mark. B. Hello. I am Mark.
JimandIgotoschool_________eightthirty_________everySaturdaymorning.
There are forty students in our class. Twenty-five are girls and _________ are boys.
—Can I borrow some books about the Internet? —Certainly, but please give _________ soon.
Jerry swims very _________.He's a member of the _________ club.
Ms Johnson wants us_________ Exercise1, but you let us _________Exercise.