A l dictionary myself bougnt

Which methods of delivery are most suitable for informal group presentations? select all that apply.

What does water came out from a rock mean in this poem and why is it compared to the radio waltz? time was away and somewhere else. the waiter did not come, the clock forgot them and the radio waltz came out like water from a rock: time was away and somewhere else.

Which sentence contains the central claim in "compulsory voting: an idea whose time has come" by tor hunter?