I spent half an hour ___________ my homework.
Dad, my computer is broken. Must it _____ now?
---- Do you like the pop star Zhou Jielun or the movie star Liu Dehua?----________. I am not their fan.
This English newspaper is very easy for the students because there are _____ new words in it.
Many flowers ________ in our school last year,and they made our school a beautiful garden.
There's a red car parking in our neighborhood. Do you know _____ it is?