【2013山东威海】— your son ______a camera? —No. He ______one this summer vacation.
The water in this river is harmful because It’s a ______ river.
I won’t go to see the film this evening because I _____ my ticket just now.
--- Where is your mother?--- She _______ to Sichuan on business. She has ______ there four times recently.
Rose feels lonely from time to time because all her friends____________.
--Nick, ____ you ____ my book?--Sorry, I came here just now .