i dropped my icecream改為否定句：I didn't drop my ice cream.
drop
v. （使）掉落；（使）掉落；投，丟；躺倒；減少，降低；減少，降低；剔除，除名；停止，放棄；送到並放下；（道路、地面等）急劇向下傾斜
n. 滴，少量；下降；落差；<非正式>遞送，交付
詞語辨析
drop, fall
drop?及物不及物均可, He dropped his voice.
fall?不及物動詞?Prices fell/dropped.
His blood pressure had dropped severely.
他的血壓嚴重地迅速下降。