1.B因为有 for ,所以要用完成时
2.A 因为information是先行词,后面有修饰词,所以要加The
3.B If在这里做“是否”,所以根据下文in two hours,要用一般将来时
1.He searched the Internet for a whole day.
A.
2.Thank you for giving me the information I wanted.
A.
3.I don't know if my father will come back in two hours.
B.
B A B,全面的解析你可以发百度消息给我,慢慢解答.
答案是
B
C
B
b
a
b