Can I change the pronouns here?

[ingolf]

English Error, Elementary Level

ESL/EFL Test #16 "Where are my Glasses?", question 2

Yesterday she was worried because she thought she has lost her glasses.

(a) was worried
(b) thought
(c) has

English Error, Elementary Level

ESL/EFL Test #16 "Where are my Glasses?", answer 2

Yesterday she was worried because she thought she had lost her glasses.

Correct entry: had
The error was: (c) has
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pronoun that would change [her glasses = them]

ingolf

[Alan]

Hi,

Do you mean 'them'?

Alan
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English as a Second Language
You can read my ESL story Phrasal Verbs/go