Lucky is a special ________dog. It’s very clever to help disabled people.
| A．trained | B．training | C．train | D．trains |
There were some cases ______ women employees were fired when they were pregnant.
| A．that | B．which | C．inwhich | D．withwhich |
Theteacherspokeofsomewritersandsomebooks________we need to know.
| A．/ | B．that | C．which | D．who |
Look at ______I bought yesterday.
| A．that | B．who | C．when | D．what |
Is that town _______you lived in as a child?
| A．that | B．what | C．which | D．the one |
The soldiers stick to ________ the gate against attack.
| A．defend | B．defending | C．defended | D．defense |