______ over and over again, but he still couldn’t understand.
| A．Having explained | B．Having been explained |
| C．Explaining | D．It had been explained |
The Great Wall was made not only by _______, but also the flesh and blood of ________ men.
| A．earth and stone, millions of | B．earths and stones, millions |
| C．the earth and stone, million of | D．the earths and stones, millions |
Last night, there was a food accident. The _______ were ill, but no _______ were lost.
| A．child, lives | B．children, life | C．children, lives | D．child, life |
---This is a photo of _________ when they were young.
---OK, how happy they both looked!
| A．my father and mother | B．my mother and father's |
| C．my mother's and father's | D．my father's and my mother |
The new student is in __________ , Grade Two.
| A．Class Third | B．Third Class | C．Class Three | D．Three class |
Today is September 10th. It's __________ Day. Let's go and buy some flowers for our teachers.
| A．Teachers | B．Teachers' | C．the Teachers' | D．Teacher's |