You were stupid to climb up that big tree.You ______ yourself.

________________ many times, he still repeated the same mistake.

In that school, English is compulsory for all students, but French and Russian are _______.[ ]

I’d appreciate________ if you would like to teach me how to use the computer.[ ]

s _____ a great deal of money, hoping that she can travelaround the world after she retires.