According to the World Health Organization, ... there to be an outbreak of any of the six most dangerous diseases, this could be cause for quarantine.
were
they were
there were
were they
Pembahasan: Conditional (Inversion) Type II
Inversi: Were + S + to + V1 / be, kemudian klausa utama would/could + V1.
Bandingkan pilihanmu dengan sobat pembelajar yang lain.