I don’t think he has completed the task , ____________?

I don’t think he is right, ________?

 The police were seeking more information to find out ____ the rich merchant. 

 Barry has visited the Eiffel Tower before, _____ he?

 The Frenchman pointed to the spoon and asked me _________ to call that in Chinese.

I don’t think that the necklace is made of diamond, ________?

He has to finish the experiment today. He must be in the lab, ______?

Whoever wants to go hiking this weekend, raise your hands, ______?

The mother didn’t know _____to blame for the broken glass as it happened while she was out.

I need a friend with whom ____ my sorrows and happiness.

—________ will you stay in Shenzhen for your summer vacation?—For about two weeks.

Tom hardly had time for concerts at that time, ________？

--- The football game was not interesting, was it? ---_____. Even John, who _____ to the super fans, didn’t enjoy it.

I don't think she could have done such a stupid thing yesterday, _____?

—Remember not to pretend to know what you don’t know.— _____. My last lesson is still fresh.

I don’t believe his dream’s come true,           it?

 I heard that some patients who had undergone laser eye surgery experienced sudden losses of vision, ______?

Mrs. Black doesn’t believe that her son is able to design a digital camera, ______?

As far as we know, half of Canadian teenagers do not get enough sleep on school nights, _____?

—Jack, you water the flower today, ___?— But, dad, I watered it yesterday.