๋‹ค์–‘ํ•œ ์˜์–ด ์„ ์ƒ๋‹˜์„ ๊ฒ€์ƒ‰ํ•ด ๋ณด์„ธ์š”...
For/since quiz ๐Ÿฆš
๋ฌธํ•ญ 1/5

I studied for this test _____ three days straight.

for
since