选择能代替例句中括号里有语法错误的地方.

选择能代替例句中括号里有语法错误的地方.
1.Following a year of fast development,（ by the first quarter of this year,China has had about 1100 e-commerce websites.）
A.China had about 1100 e-commerce websites by the end of last March.
B.by the end of the first quarter of this year,China has had about 1100 e-commerce websites.
C.by the end of this recent past March,China has about 1100 e-commerce websites.
D.by the end of this first quarter,China had about 1100 or so e-commerce websites.
2.Many students agreed to come,but some students（ against because they said they don't） have time.
A.were against because they said they did not
B.were against because they say they don't
C.were against it because they said they did not
D.were against coming because they said they don't