1) Detective, my son __ (not / steal) that car last Sunday afternoon. He was getting married at that time in front of 200 guests! a) COULDN'T HAVE STOLEN b) SHOULDN'T HAVE STOLEN c) MAY NOT HAVE STOLEN 2) Our mayor ______________ (do) something different. The new roundabout is more of a problem than a solution. a) MAY HAVE DONE b) SHOULD HAVE DONE c) MUST HAVE DONE 3) It __________ (be) a better option to plant pines than oaks in the park; they grow faster. a) should have been b) ought to have been c) might have been 4) There was a huge traffic jam this morning in Central Avenue. An accident ____________ (cause) it.  a) may have caused b) should have caused c) must have caused 5) I don't know where my boss is. He ______________ (go) to the post office to return a parcel. a) might have gone b) should have gone c) would have gone 6) This slope is so steep! They ______________ (install) an escalator. a) should have installed b) should of install c) may have install 7) Irene _____________ (not move) to the outskirts; now she has to commute to go to work everyday.  a) shouldn't has moved b) Shouldn't have moved c) would have moved 8) My college has got lots of stairs, but no ramp; they ________________ (design) a more accessible campus for disabled people a) must have talked b) had to have talked c) could have designed 9) This road was full of bumps. They _____________ it. a) may not have fixed b) must have fixed c) shouldn't have fixed 10) Cities like Mumbai are overcrowded; they _____________ (control) population growth some years ago. a) must have controlled b) should have controlled c) mustn't have controlled

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