The World Health Organization has given some advice on________to protect us from being infected(感染)with H7N9.
| A．how |
| B．what |
| C．where |
| D．when |
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 |
At first, the meeting made her _______nervous.
| A．feel | B．felt | C．to feel | D．feeling |