Smiles around the world _____ be false,
问题:
Smiles around the world _____ be false, ______ other feelings like anger, fear or worry.[ ]
A. must; hide
B. must; hiding
C. can; hide
D. can; hiding
Smiles around the world _____ be false, ______ other feelings like anger, fear or worry.[ ]
A. must; hide
B. must; hiding
C. can; hide
D. can; hiding