1. I think robots can do many things like humans in the future

》I think ....robots able to do many things like humans in the future....(able)

2.My grandfather has to wear his glasses to read newspapers

》My grandfather .....can't read newspapers.... without wearing his glasses (can't)

3.Despite being able to lend the poor man some money, she did'n do so

》Although she ...can lend the poor man some money, she didn't do so...(could)

4.Running non-stop in 30 minutes is beyond her ability

》She...can't run in 30 minutes.... (can't)

5.Some robots in the future will have the ability to take care of patients

》Some robots ....in the future able to have the ability to take care of patients... (able)