The shop assistant has to break off the conversation to serve a customer.
Giải bởi Vietjack
Đáp án C
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Mark the letter to indicate the word whose underlined part that needs correction.
We are in compete with four other companies for the contract.
Combine two sentences into a new one using the given words in brackets.
Finish the second sentences so that it has a similar meaning to the first one.
The problem is so difficult that we cannot solve it.
Mark the letter to indicate the correct answer.
