I have been to London. I _____ there last month.

一The summer vacation is coming．Do you have any ideas about the coming vacation?－I 　　volunteering in the old people’s home．What do you think of it?

— I’ve shown you all the interesting and important places of our school. — Thank you for           so much time.

Liao Dong is __ __ his eraser, and _____ it finally. 

If you keep on working hard and never give up , you’ll ________ in getting into your                       dream university.