问题补充:
The joke told by Tom made us, so our maths teacher couldn’t make himself.
A. laugh; hearing
B. laugh; heard
C. laughing; hear
D. laughed; to be heard
答案:
A. laugh; hearing
(答案→)B. laugh; heard
C. laughing; hear
D. laughed; to be heard
解析:前一个made是一个使役动词,后接不带to的不定式作宾补。后面的make oneself heard为一习惯用法,意为“使(别人)听到自己的话”,故答案为B。