They claim they have _________ in finding a cure for this di

They claim they have _________ in finding a cure for this disease.A．succeeded B．

K34 
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We should __________ the main road since we're not sure of t

We should __________ the main road since we're not sure of the way.A．tend to B．r

N31 
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You __________ expect the world to change overnight.

You __________ expect the world to change overnight.A．can't B．isn't able to C．mu

P47 
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