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.

------- Jack, you erase the blackboard today, __________?
------- But I did it yesterday.

—________ 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, ______?