meaning of the phrase "money making venture"

[Limbo]

Business Idiom in English, Intermediate level

ESL/EFL Test #141 "Expressions and phrases about money", question 1

My grandfather keeps all his money in a ......... under his bed.

(a) cash dispenser
(b) cash machine
(c) cash box
(d) cashier

Business Idiom in English, Intermediate level

ESL/EFL Test #141 "Expressions and phrases about money", answer 1

My grandfather keeps all his money in a cash box under his bed.

Correct answer: (c) cash box
_________________________

what is the meaning of the phrase "money making venture"

Limbo

[Mister Micawber]

.
money-making venture = a commercial undertaking that promises a profit.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mr. Micawber