salt
| A．almost | B．calm | C．chalk | D．half |
He was sitting on the floor ________ by books.
| A．surrounded | B．surrounding |
| C．surroundings | D．surround |
The weather turned out to be fine yesterday. I ________ the trouble to carry my umbrella with me.
| A．should have taken | B．could have taken |
| C．needn't have taken | D．mustn't have taken |
My father may have to go into hospital，________ he won't be going on holiday.
| A．in that case | B．in which case |
| C．in case | D．in the case |
Teenagers who discover they were ________ often search for their biological parents when they are old enough.
| A．adapted | B．adopted |
| C．brought up | D．looked after |
It was the first time that Zhang Lin had spoken before hundreds of strangers and he spent several days __________ his lecture before he stepped onto the platform.
| A．polishing | B．printing | C．spreading | D．exchanging |