A man cannot smile like a child，________ a child smiles with his eyes，while a man smiles with his lips alone.
A．so B．but C．and D．for
________，he talks a lot about his favorite singers after class.
A．A quiet student as he may be
B．Quiet student as he may be
C．Be a quiet student as he may
D．Quiet as he may be a student
If you are traveling ________ the customs are really foreign to your own，please do as the Romans do.
A．in which B．what C．when D．where
In peace，too，the Red Cross is expected to send help ________ there is human suffering.
A．whoever B．however C．whatever D．wherever
(2013·皖南八校联考) ________ a lady of her necklace, the young man was arrested on the spot by a policeman.
A．Having caught robbing B．Caught robbing
C．Being caught robbing D．Catch robbing
(2013·菏泽模拟)The building project ________ next year is not easy ________ in time.
A．being carried out; to complete
B．carried out; to be completed
C．to be carried out; to complete
D．to be carried out; to be completed
