Linda is ____shorter than Lily.
Which of the following signs can’t be found in a hospital?
—Our school is so big. We must clean it up as soon as possible. —Don’t worry. ________.
-Hello, Jenny. Your box looks so heavy. Let me give you a hand. -_______I'm OK.
His father had an important meeting just now, _______?
-_______ can the batteries (电池) keep these cool iPhones and iPads working? - For about ten hours.