—Could you give me some advice on travelling?
—Take a map with you _______________ you have a guide or you know the city well.
A.if B.unless C.although D.because
---Is this park ________ you’ve visited recently?
---Yes, it’s one of the most beautiful parks I’ve ever visited.
A.that B.what C.the one D.where
Dan shows an interest in musical instruments and is often heard _____ the guitar.
A. play B. played C. playing D. to play
---I wonder what makes you a successful manager.
---I ___ as a waiter for five years and it makes a lot of contributions to my today’s work.
A.serve B.have served C.was serving D.served
—When can they finish the project? — ________. Just wait.
A.Until next week B.Not until next Wednesday
C.Since several days ago D.For several days
________ of the students’ parents in our class are in their .
A.Two-fifths； forties B.Two-fifths； fortieth
C.Two-fifth； forties D.Two-fifth； fortieth
