known to all language learners, newly learntwords will soon be forgotten unless ______used in everyday communication.

The woman asked the policeman where ________.

How about the number of students playing on the playground? —— ＿＿＿＿＿.

How long have you _______________ themotorbike?—For about two weeks.

What would you wish to do if you were a college student again? —That’s very hard to say, but I wish I___________ when I was a college student.