1. Tom kept quiet about the accident ________ lose his job.
A. so not as to B. so as to not C. so as not to D. not so as to
2. Eating too much fat can ________ heart disease and cause high blood pressure.
A. result from B. contribute to C. attend to D. devote to
3. We regret to inform you that there are no tickets ____ for Friday’s performance.
A. available B. spare C. convenient D. affordable
