It's_____ orange.（　　）

A．/

B．an

C．this

I want to work in an __________. (   )

A．hospital

B．office

C．university

选择正确的单词
1. Jenny and Danny arrive __________ (on, in) Shijiazhuang today.
2. Did you have __________ (a, an) nice trip?
3. I want to __________ (take, by) a bus to Beijing.
4. __________ (How, What) can we go to Beijing?
5. We will arrive in Beijing __________ (in, at) the afternoon.

Mike has ______ apple. Janet has ______ big orange. (    )

A．a; a

B．an; a

C．an; /

There is underground station near my home. (  )

A．an

B．a

C．the