Question

Though Tom missed many Lessons, he tried hard belind otherd .

A not fall
B to not fall
C not to fall
d to fall
填那个为什么？

Answer 1

C 尽管tom错过很多课程，但是他努力学习尽力不落后于其他人。
try to do sth尽力做某事
try not to sth 尽力不做某事，falll behind others落后于他人
根据语境分析，这里应该加上否定的not
，故选C

Answer 2

C

try to do sth尽力做某事
try not to sth 尽力不做某事

falll behind others落后于他人

Answer 3

C not to fall
努力不落后到别人后面，首先排除D,然而，不定式的否定语态是NOT TO DO STH，因此选C.如果解释清楚了，请采纳。

Answer 4

C

try to do sth尽力做某事
try not to sth 尽力不做某事

falll behind others落后于他人 望采纳