I’m sure Andrew will win the first prize in the final.—I think soHe ________ for it for months

The reason ____he was late was ____he had taken a wrong bus.

The little boy is dirty from head tofoot because he ___ in the mud allmorning.

Security devices at airports are ______ to spot weapons that could be used by terrorists.

I heard that you would study abroad next term.— ____. We can keep in touch with each other by E-mail. [ ]