what does "there's a lot more" mean?

[Amanda]

Business English Courses, Elementary Level

ESL/EFL Test #71 "Chit Chat: At the garage", question 8

Mechanic: Well, there's a lot more. I mean the petrol tank has a ......... in it.

(a) gap
(b) hole
(c) space
(d) opening

Business English Courses, Elementary Level

ESL/EFL Test #71 "Chit Chat: At the garage", answer 8

Mechanic: Well, there's a lot more. I mean the petrol tank has a hole in it.

Correct answer: (b) hole

Your answer was: incorrect
Mechanic: Well, there's a lot more. I mean the petrol tank has a space in it.
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what does "there's a lot more" mean here?

Amanda

[Alan]

Understood: There's a lot more wrong with the car.
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English as a Second Language
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