A tourist will easily lose his way in Beijing ______ he has a map or a guide.
| A．if | B．because | C．unless | D．when |
The teacher spoke of some writers and some books ________ 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 |
The work is supposed ________ before Wednesday.
| A．to finish | B．to be finished | C．finish | D．finishing |