最初，我没理解他说的话。
________ ________I didn’t understand what he said．
昨天他发生了什么事?
What________ ________him yesterday?
当约翰步行去学校时，他在一棵树上看见一只猫。
When John________ ________to school，he saw a cat________a tree．
—Do you know________?
—This afternoon．
A．when will the policeman give us a talk
B．where will the policeman give us a talk
C．when the policeman will give us a talk
D．where the policeman will give us a talk
We were________surprised that nobody believed that it was true．
A．so
B．very
C．such
D．too
The bridge________by the villagers last year．
A．was building
B．was built
C．is building
D．is built
