withthefinalexam()about,jennyhastoworkreallyhardthisweekendAworryingBworriedCtobeworriedDtoworry答案是D，为什么是D，不是其他选项呢？请详细解答。谢谢

Question

with the final exam ( ) about, jenny has to work really hard this weekend
A worrying
B worried
C to be worried
D to worry
答案是D，
为什么是D，不是其他选项呢？请详细解答。谢谢

Answer 1

jenny has to ..... 需要怎样怎样，不是过去式，未来式吧。
to worry符合，worrying正在不符合，worried, to be worried 都不怎么符合吧。