She set off at 9 a.m. and ____ the airport an hour later.

Tom ___ downloaded a virus into his computer, hecan not open the file now．

Would you like to come to the party — _________.

下列各组大写字母中，他们的小写字母只占中格的是________ .

You see, ______ Sandy ______ Simon is good at color therapy!—OK! Then I can ask either of them for advice.