1. development - develop; conveniently - convenient; communication - communicate, production - produce, continuous - continue, beginning - begin, transmitter - transmit, action - act, recorder - record, electronic - electron, simultaneously - simultaneous, different - differ, usable - use, central - centre, calculator - calculate, possibility - possible, disconnect - connect.2. wet - wetter - the wettest, merry - merrier - the merriest, dangerous - more dangerous - the most dangerous, crowded - more crowded - the most crowded, ugly - uglier - the ugliest, thick - thicker - the thickest, high - higher - the highest, pale - paler - the palest, clean - cleaner - the cleanest, little
- less - the least