1.We have a lot of trouble ______to the top of the hill before eight o'clock.
A.get B.to get C.got D.getting
2.We had ____ difficulty _________ through the snow.
A.much,drive B.many,to drive C.much,driving D.much,with drive
3.I have trouble _____ the math problem without your help.
A.to work out B.working out