A baby might show fear of an unfamiliar adult, _______ he is likely to smile and reach out to another infant.
A、ifB
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________fromtheoccasionallatenightparty,ourneighborsareveryquiet.
Aftersomanydayswithoutrain,thegroundquickly________thelittlerainthatfelllastnight.
It is useful to science _______ the earth as an object in space.
After so many days without rain, the ground quickly ________ the little rain that fell last night.
________ they've got to know each other a little better, they get along just fine.