After a short rest, the soldiers keep on _________ till midnight.
| A．work | B．working | C．to work | D．to working |
---_________ do you get there? ---On foot.
| A．How | B．How long | C．How many | D．How far |
This is __________ interesting job.
| A． a | B．an | C．the | D．/ |
I like koalas , because they are __________cute.
| A．kind of | B．a kind of |
| C．kinds of | D．a kinds of |
---Why do you like cats? --- __________ they’re interesting.
| A．So | B．But | C．Because | D．And |
---What do you do after school?---I practice_________ the guitar.
| A．play | B．plays | C．to play | D．playing |