While travelling in a strange place, you’d better ____ the local people and follow their customs（习俗）.

____ it happens, her birthday is after mine.

Mr. Wang, whom would you rather ____ the important meeting? — Tom. [ ]

Why not ______ your teacher for help when you can’t finish ______ the story by yourself.

mes smiles around the world ______ be false,hiding other feelings like anger, fear or worry.