_______Tom is very good at science, his brother is absolutely hopeless.
A.When | B.While | C.As | D.If |
Jack will hold a meeting ______ people can voice their opinions on today's global economy.
A.which | B.when |
C.where | D.whose |
A new learning center has been built in the school, ______ students to get to know the world more easily.
A.allow | B.allowed |
C.to allow | D.allowing |
—Something smells really good in here!
—You ______ my Easter cookies.Have one!
A.smell |
B.are smelling |
C.were smelling |
D.smelt |
—Daddy, how much do you earn an hour?
—If you ______ know, $20 an hour.
A. may B- must
C.can D.should
I ______ for six months.I'm really out of shape.
A.hadn't exercised |
B.didn't exercise |
C.don't exercise |
D.haven't exercised |