proofreading

of course,there are sharks which <attack> people.
these sharks are <唔駛usually> carnivorous.(carnivorous
animals are animals <which> mainly eat meat.)they attack
<other> sea animals such as large fish,dolphins,seals
and <唔駛on> occasionally human beings too.
there are several reports of shark <attacks> in hong
kong last year.two swimmers died and three <were>
severely hurted in the attacks therefore, <life> guards
always <keep> a look-out for sharks.the guards will
warn swimmers by using <loud> speakers if a shark
is <discovered>.

Of course, there are sharks which [attack] people.
These sharks are [cross out usually] carnivorous (carnivorous
animals are animals [which] mainly eat meat). They attack
[other] sea animals such as large fish, dolphins, seals
and [cross out on] occasionally human beings too.
there are several reports of shark [attacks] in hong kong
last year. Two swimmers died, and three [were]
severely [injured] in the attacks, therefore,
beach guards always [keep] a look-out for sharks.
The guards will warn swimmers by using [loud] speakers
if a shark is [discovered].

Of course, there are sharks which attacks attack people.
These sharks are usually carnivorous.(carnivorous
animals are animals who which mainly eat meat.) They attack
another other sea animals such as large fish, dolphins, seals
and on X occasionally human beings too.
There are were several reports of shark attacts attacks in Hong
Kong last year. Two swimmers died and three are were
severely hurted hurt in the attacks. Therefore, beach guards
always keeps keep a look-out for sharks. The guards will
warn swimmers by using loudly loud speakers if a shark
is discovered discovered.