---Do you think he will do me a favor?---As far as I know, he is the last one ___ others. He ___ be prepared to give you a hand, though.
Below ____ an article about advertisements ____ by a student for her English project.
_____ an ad does not lie, it does not mean it is altogether innocent.
She set off at 9 a.m. and ____ the airport an hour later.
If ____ in, viruses can result in illness or even death.
By the 1920s, Howard Carter ____ an explorer.