1. standing ovation (cụm N, nghĩa là "đứng lên rồi vỗ tay")

2. alternatives (between + từ số nhiều)

3. undistingishable (ko phân biệt được)

4. incomparable ("vô song")

#nlqa

Đáp án:

1. At the end of the concert,the audience gave the young pianists a standing ovation.

2. A dilemma is a situation where a difficult choice has to be made between two,sometimes unpleasant, alternatives.

3. It is very difficult to find Mrs.Burton's shop, for it was indistinguishable from all others in the street.

4. When we arrived at the hotel,we were amazed at the incomparable hospitality of the fans.