1. only
Only time will tell.
When applying to American universities, your TOEFL score is only one factor.
The only trouble I've ever had was dealing with people who didn't like my personality.
It's presumptuous for humans to assume that our task is to do what only God can do.
Only those who risk going too far will know how far one can go.
Although rainforests make up only two percent of the earth's surface, over half the world's wild plant, animal and insect species live there.
Roger Miller's father died when he was only one year old and his mother became sick soon after, so he was sent to live with his uncle in Erick, Oklahoma.
Life would be infinitely happier if we could only be born at the age of eighty and gradually approach eighteen.
She's only two years old, but she can already count to 100.
The only limit to our realization of tomorrow will be our doubts of today.
The only thing on the table that I normally wouldn't eat is that stuff on the yellow plate.
Questioned about his policies, the candidate gave only vague answers.
Tom's criminal record consists of only two drunken driving citations.
You say I should know him quite well, but as a matter of fact, I was introduced to him only last week.
Plenty of opportunities will present themselves, if only you are awake to them.
2. just
He just left.
If you don't want to put on sunscreen, that's your problem. Just don't come complaining to me when you get a sunburn.
Rather than putting off this meeting, why don't we just call it off?
A really perceptive person can figure out a whole situation with just a few clues. That's the kind of person I want you to become.
Being a good conversationalist does not just mean being a good speaker of English.
The question is whether Tom was planning to meet Mary or just met her by chance.
He just naturally avoids everything that is intense, difficult or strenuous.
Just when I was getting the hang of things, I was in a traffic accident and had to stay two months in the hospital.
Tom would often make mistakes purposely just so the teacher would notice him.
Considering all I've eaten all day is just one slice of bread, I'm not really all that hungry.
I don't need to sound like a native speaker, I just want to be able to speak fluently.
I have a hard time seeing the logic of this latest decision of his. He just isn't as sharp as he used to be.
He puts on a show of being impartial and unbiased, but I think he's just a guy with no opinion of his own.
I've been thinking about marriage a lot, and I think we should just do it.
If you raise an eyebrow, it can mean "I want to have sex with you", but also "I find that what you just said is completely idiotic."