1 . _________ with heavy loads of teaching _________ he later became an easy target of the flu．

A．So tired was the teacher； that	B．The teacher was so tired； which
C．Tired as the teacher； that	D．Such was the tired teacher； which

2 . ﹣﹣﹣I spent a week in Xiamen last month．
﹣﹣﹣Then you must have been overcharged for sea food many a time， ________ you？This city is known for that．

A．mustn't	B．weren't
C．haven't	D．hadn't

3 . If the boss is angry when he comes in， don't tell him about the customer's complaints． You'll just be _________．

A．killing the fatted calf

B．seeing the handwriting on the wall

C．hitting your own feet of clay

D．adding fuel to the fire

4 . ---_________ makes your son feel blue today?
---_________ to watch his favourite cartoon Paw Patrol.

A．What it is that; To be forbidden	B．What is that; Forbidden
C．What is it that; Being forbidden	D．That is what; Having forbidden