It has been estimated that if we intend to stay above the starvation level, ... the food supply.
so we will have to double
and it must double
which it must be doubled
we must double
Pembahasan: Conditional Type 1
Pola: If + S + V1 + O/C, S + must + V1 (kondisi nyata/kemungkinan).
Bandingkan pilihanmu dengan sobat pembelajar yang lain.