We can’t give up________ we should fail 10 times.
A．even if B．since C．whether D．until
—Have you bought the dictionary?
—No.I have________ two yuan on me.
A．more than B．no more than
C．over D．more over
—Four dollars a pair？I think it’s a bit too much.
—If you buy three pairs，the price for each will________ to three fifty.
A．come down B．take down C．turn over D．go over
—Oh，it’s you！I didn’t________ you.
—We haven’t seen each other for several years.Glad to meet you again.
A．realize B．recognize C．know D．see
Don’t respond to any emails________ personal information，no matter how official they look.
A．searching B．asking C．requesting D．questioning
A competent speaker of a language must have a(n)________ of these different styles.
A．comment B．observation C．command D．response
