板块活动可以直接诱发
| A．泥石流 | B．干旱 | C．洪水 | D．地震 |
You waste much time______pig flu.on the internet..
| A．to know | B．knowing | C．know | D．to be known |
---- Is there a vaccine _____ pig influenza?, I’m anxious to know.
----- Don’t worry, there is a vaccine _____ for pigs against pig influenza
| A．for; available | B．against ; use | C．to; access | D．against; available |
Has she had a cold like pig flu. _____? for she is absent.
| A．if anything | B．or anything | C．for anything | D．anything but |
The teacher criticize me, so I must finish my essay about agriculture,farmer and rural areas today______.
| A．anyhow | B．somehow | C．anyway | D．somewhat |
----- Would you like to climb the Mountain Tai on May Day?
_____, I’d like to.
| A．Yes | B．Great | C．You are right | D．Absolutely |