——You look upset. What’s the matter?—— I had my proposal _______ again.
_________a man’s age is, he can relax himself by wearing a confident smile.
The results of the experiment proved to be very good, _________ was more than we expected.
Overloaded with work, many doctors now get far less sleep than they _________.
In the traditional Chinese calendar, each year _________a name of 12 kinds of animal.
The teacher had intended not to tell the students but his remark _________the answer to the question.