... He can understand us.a. harderb. hard c. hardlyd. difficult > c 46. I couldn't make coffee for everybody. There weren't a. cups enoughb. enough cups c. cups tood. too cups ... > c 12. A main clause is sometimes called a clause.a. principleb. principal c. principalityd. principles b13. I wish I more about the logistics of the expedition.a. would knowb. knew c. ... ago by a man Charles Babbage.a. knownb. recognized c. writtend. called d27. The flat of three rooms, with a kitchen and a bathroom.a. composesb. contains c. includesd. consists >d28....