—Have you ever ________ to the Great Wall? —Yes, I _______ there last autumn.
-I called you at 9 o’clock yesterday evening, but you didn’t answer.-Let me see. I ___________ a shower at that time.
-What do you often do on weekends?-Our family like to drive _______________ to enjoy ourselves.
-Let’s go to the Children’s Home.-Wait a minute. I think we should _____________ the old toys and books one more time.
-What does Yu Gong Moves a Mountain tell us?-It tells us we will never give up _________ there are difficulties in front of us.
-How do you know I’ve just come back from the beach?-There is _____________ sand in your shoes.