He ___________ his friends for their help at the hotel now.
During the construction of the Qinghai-Tibet Railway, 33 migration overpasses have been made_______for herds of Tibetan antelopes to go through their breeding grounds.
We don’t know who ____ for the murder, but the policemen will tell us the truth soon.
Mrs. Black doesn’t believe that her son is able to design a digital camera, ______?
Now that their parents are dead, the poor boy doesn’t know ________ the money they left.
The woman ______ you met at my home was a teacher of English.Which of the following is wrong ?