His uncle     be very poor,but now he has been very rich.

--- Jack, could you help me ________ these pictures on the blackboard? It may help us know more about the hazy weather. (雾霾) --- With pleasure.

The doctor ________ the woman ,but he couldn’t find out what was wrong with her.

My father ______ my mobile phone because the school don’t allow students to use it.

---       you tired after the visit?--- No, I         .