The monument was built in honor of the explorer who was believed _____ the river.
This is the ______ bag ______ lost yesterday, but it’s not mine.
----- Do you have clothes ______? I’ll wash them for you. ------No, thank you. I will wash them myself.
______ a good insulator(绝缘体) , rubber is often used in cables.
I felt ______ tired, but he didn’t stop ______.
All of us need ______.