Bill is not a fast runner and he doesn't have a chance of winning the marathon, but he will _____ the race even if he finishes last.
My neighbor’s daughter changed so much that I didn’t ____ her at first sight.
He had _____ me to come to the party, but he didn’t show up.
E-mail, as well as telephones, _____ an important part in daily communication.
The water will be further polluted unless some measures______.
---Excuse me, sir, is this seat taken? ---_______.