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            • 1. The sleeping baby would be scared         a sudden loud noise.

                

              A.was there
              B.there was
              C.should there be
              D.there should be
            • 2.

              ______ no modern telecommunications, we would have to wait for weeks to get news from around the world.        

              A.Were there
              B.Had there been
              C.If there are
              D.If there have been
            • 3. _______ available, many people would have died from sickness or even small wounds.

                

              A.If penicillin would not be
              B.Were penicillin not
              C.Had penicillin not been
              D.If penicillin should not be
            • 4. ---Shall we go to see the Avengers II this weekend?

                     ---I’d love to, but well, I will check my schedule first. This Saturday evening?

                     ---_____.

                    

              A.When you are convenient
              B.When there is convenience

                    

              C.At your convenience
              D.For you convenience
            • 5. Some of you may have finished unit one. ______, you can go on to unit two.
              A.If you may
              B.If you do
              C.If not
              D.If so
            • 6.

              Potatoes turn green when_____________ (暴露)to light.

            • 7.

              As is often the case, he tends to forget all about eating and sleeping, especially when deeply ________ in work.

              A.absorbing
              B.being absorbed
              C.to absorb
              D.absorbed
            • 8.

              To their relief, the doctor told them that Betty, ________, could recover very soon.

              A.if properly treating
              B.if properly treated
              C.if having properly treated
              D.if being properly treated
            • 9.
              Some of you may have finished unit one. ______, you can go on to unit two.  
              A.If you may   
              B.If you do   
              C.If not   
              D.If so 
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