Chọn đáp án đúng

1) If you are not careful, you will cut yourself with that knife.
A. Unless you are careful, you will cut yourself with that knife.
B. If you are careful, you will cut yourself with that knife.
C. Unless you are not careful, you will cut yourself with that knife.
D. Unless you were careful, you will cut yourself with that knife.
2)Today isn’t Sunday, so the pupils can’t go swimming.
A. If today is Sunday, the pupils could go swimming.
B. If today were Sunday, the pupils could go swimming.
C. The pupils could go swimming unless today is Sunday
D. The pupils could not go swimming if today isn’t Sunday.
3)My brother doesn’t like ice-skating because he thinks it is .
A. danger
B. in danger
C. dangerous
D. endangered
4)Will you _______ making models in the future?
A. pick up
B. look for
C. take up
D. find