【2013贺州】This tall building has _________ floors. And Tony lives on the ________ floor.
As students, we should work hard and do ________ best to realize our dreams.
Some naughty boys like to play ________ trick on their classmates on April Fool’s Day.
Which of the following underlined parts is different in pronunciation from the others?
She is so helpful that she is always ready to help people in trouble. Which of the following is correctfor the underlined word in the sentence?
The words that we should pay attention to ___________ on the blackboard.