While we ________ an English song, some visitors came into our classroom.
were singing
sang
are singing
— Andy is really honest boy. — Yes. That’s why he is most popular student in his class.
— Don’t shout in the hospital. —__________.
What __________ things do you want to buy?
--Tommy, do you know how to_______ this word in Chinese? --Sorry, I can ’t_______ Chinese.
We often take _______, and we do eye _______ every day.