（ ）1.I ______ afraid of the dark ,but now I am not .
A.am used to B. used to C. used to be
( )2. The heavy rain in Fujian Province _______ more than 4,000 students ______ taking part in the college entrance examination (高考) on time.
A. stopped, from B, prevent, from C, A or B
( )3. My father told me that the earth _______ around the sun.
A. goes B. went C. has gone
( )4. ______ I was tired, I still worked hard.
A. But B. While C. Although
( )5. --- Where is your father?
--- He ______ to Shanghai on business.
A. has been B. has gone C. have gone
