The process of curing a disease is like a war ___ different soldiers fight against an enemy.

haven’t seen each other for _______,though we are in the same city.

Have you seen the movie《Lost in Thailand》— Yeah, it’s truly worth ________. It’s ________interesting that I’ve seen it twice.

My grandpa sowed the flower seeds in thegarden ______it was the best time for them to grow

Miss Gao asked a question， but it was ___________that nobody could answer it.