---I’ve heard some scientists have sent a spacecraft to Mars. ---Really? Has it arrived _____? A already B yet C still D ever
Lucy is a very student, she usually answers the teachers’ questions in her class.
— I’m not going swimming this afternoon. — ______. I have to help my mother do some cleaning.
It is _______ to do small things well than plan to do big things which can’t be finished.
— Look! What’s that in the sky? — birds!
number of the students in Class Eight, Grade One is 40.