This book ______ by children.( )
A.lovesB.lovedC.is loved
This math problem isn't so difficult that I can work it out ________.( )
easily
usefully
loudly
quietly
John is _______ American student.( )
a
an
the
/
Please ____ the dog for me while I'm away.( )
look
look after
look up
look out
Nick didn't have dinner ________ be finished doing homework.( )
if
when
until
after
_____ has the girl waited for the bus over there?
For half an hour.( )
How often
How many
How long
How soon