Every time cigarettes go up in price, many people try ＿＿＿.
(A)to stop to smoke
(B)stopping to smoke
(C)to stopping smoke
(D)to stop smoking
(E)smoking to stop

stop以動名詞為受詞時，表示「停止做…事意， stop接不定詞時則是指「停下來做…事」 。

She stopped to listen. = She stopped  in order to listen.（她停下來聽。）

She stopped listening. = She didn’t listen any more.（她不再聽了。）

抽菸這個行為用smoking

喝酒這個行為用drinking

1. Try to + Verb

花費極大心力去嘗試極為困難，即使我們盡全力也可能失敗的事情。
(1) Maria tried to climb Mt. Everest. Maria嘗試攀登聖母峰。
(2) I tried to watch Paranormal Activity, but it was too scary! 我試著要看鬼影實錄，但這部電影太可怕了！
(3) Deepak tried to study, but he was too tired. Deepak試著要用功念書，但它太累了。

2. try + Ving

去做你之前從未嘗試過的事情，雖然並不困難，但你不知道將會發生什麼事。

(1) Try adding salt to your potatoes. 試著加點鹽在你的馬鈴薯上。
(2) If you can’t reach me by e-mail, try calling me. 如果你用電子郵件無法連繫我，就試著打給我吧！

https://tw.englisher.info/2016/08/11/english-grammar-try-to-do-or-try-doing/