The middle-aged woman is unaccustomed ______ speaking in public. A: for B: in C: at D: to

However, it also exerted ______ pressure on the strikers, who were unaccustomed to such high-level attention to their affairs. A: immense B: vast C: massive D: enormous

When people try some expressions which are less frequently used, they_____. A: maybe feel disappointed and upset B: are unaccustomed to the trial C: always feel uncertain and worried D: may find them amusing and interesting