20. John shut everybody out of the kitchen _______ he could prepare his grand surprise for the party.
A. which B. when C. so that D. as if
20. John shut everybody out of the kitchen _______ he could prepare his grand surprise for the party.
A. which B. when C. so that D. as if
C
选 C。so that 引导目的状语从句，其意为“为了”。