【推荐1】请用升调、降调、升降调、降升调以及平调标出下列句子的语调
1. Who is your mother? ________________
2. They went to the library, didn’t they? ________________

【推荐3】选择下列多义词的意思
fix: A.凝视(vt .) B.修理(vt .) C.确定(vt .) D.固定、安装(vt .)
1. Fix a shelf to the wall.
2. My watch has stopped - it needs fixing.
3. The time for our meeting has been fixed already.
4. Her eyes were fixed on the nice dress.