Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.
Question 29: She has disappeared three days ago, and they are still looking for her now.
A. has disappeared B. and C.are still D. for her
Question 30: Electric bikes are becoming increasingly popular nowadays thanks to its convenience.
A. are becoming B.popular C.thanks D.its
Question 31: Some people were made redundant or even lost their relatives during the unprecedented pandemic, and they just found that life was no longer enduring.
A. redundant B.relatives C.unprecedented D.enduring
