语法：Scarlette must make many difficult choices,as exemplified by her forcing herself to leave Gus

force
为及物动词，后面需跟宾语：force
sb
to
do
sth
如，the
universities
were
forced
to
cut
staff.
大学被迫裁员。
在形式上，force的用法需加herself，不然意义不受影响，但语法错误。
Scarlette
必需做出许多艰难的抉择，比如迫使自己离开Gus.
希望满意，祝您进步：）