18. For further help-------the program, please refer to the instructions on our Web site or e-mail us with your specific question.(A)install(B)to install(C)installed(D)be installed원래 help(+목적어)+원형 부정사/to 부정사 잖아요 그럼 (A)랑(B)가 나와있으면 뭘 골라야 하나요?
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