III. 1.Although
2.come
3.were
4.solar
5.how much
6.unpolluted
7.which
8.to be talked
9.have been
10.shall we
XI.1.If i were you, i would learn harder
2.she suggest going to huong pagoda this weekend.
3.2 days ago, my brother came to school late because he got up late
4. The internet is a wonderful invention in our modern life
5. Our school is going to hold an english speaking contesstt to celebrate the teacher's day.