My mother is usually very busy (繁忙) ________.
His brother insisted on _______to have an English lesson _______ he didn’t feel well that day.
The young girl did ________ preparation work for her speech before she stood on the stage confidently.
—Thank you so much for helping me with my English. — ________. That’s what friends are for.
My parents are strict _________ their work and they are also very strict ________ me.
The foreigner spoke very fast, but Bruce still can understand ________ of his speech.