1. --- Leonardo DiCaprio is________ famous actor.
--- Yes, he performs very well in________ film “The Revenant”.
A. a;,/ B. a; the C. the; the D. the; /
2. --- Professor Wang is so strict in the project because we can’t afford to make any mistakes.
--- I know. We’ll check it again _____ we’ve checked several times.
A. since B. if C. though D. because
