`11`. The contest has over 100 people.
=>There are over 100 people in the contest.
`12`. Are there many fruit trees in your garden?
=>Does your garden have many fruit ?
`13`. This room is very narrow.
=>It is a narrow room.
`14`. Did you leave Paris two years ago?
=>Have you left Paris for two years ?
`15`. Nga is very keen on English.
=>Nga is interested in English.
=>Nga is into English.
=>Nga likes English.
`16`. This house has only one storey.
=>It is a one-storey house.
`17`. Mai is good at speaking English.
=>Mai speaks English well.
`18`. When did you go to the zoo?
=>How long has it been since you went to the zoo?
`19`. Did you go to school by bike yesterday?
=>Did you ride a bike to school yesterday ?