I am sure that if it came to that point, he would do ________ is expected of him.
The problem is so complex that I'm afraid it will take me several hours to________.
The newlylearnt words will be impressed on us only if they are ________used in everyday communication.
The car's________ has improved a lot since a new engine has been applied to it.
How________ you expect to get something in return when you never willingly lend a hand to others?
--- Alice is moving to her new apartment next Saturday. --- I would be glad to help her,________ need some help.