Question

A lot of mangoes ____ sour. a. Is b. Are c. Was​

Answer 1

Answer:

A lot of mangoes are sour

Answer 2

Question :

A lot of mangoes ________ sour.

Answer :

A lot of mangoes ___are___ sour.

1) see there is mangoes not mango means not one mango...

2) And check the sentence it is in present form ...simple present .

so I choosed

${ \boxed{\color{pink}{\tt{are}}{}}}$