【明報專訊】Now taking videos by action cameras is popular, specially in extreme sports. Bill has used this technology to film his exploits in playing ice hockey.

■English highway-sentences

Question words

The following are some common question words:

who, whom (for people)

what/which (for things)

when (for time)

where (for places)

why (for reasons)

how (for more details)

■Quiz

Fill in the blanks with the best question words. (請看附圖)

■Glossary

extreme sports (n phr) 極限運動

exploit (n) 功績

mount (v) 被固定在……上

helmet (n) 頭盔