| Advice to H.S.T. |
| Subj. for recent arrivals, maybe |
| Alien's subj. |
| A.C.T. subj. |
| A.E.S. and H.S.T. |
| Numbers on H.S. transcripts |
| A H.S. dropout may earn one |
| Basic subj. for a surgeon |
| Advanced math subj. |
| Art sch. subj. |
| Adam Smith's subj. |
| Eliot Janeway subj. |
| A subj. of this puzzle |
| An Inconvenient Truth" subj. |
| Mrs. H.S.T. |
| Subj. for many green card seekers |
| Math subj. with integrals |
| Frequent hoax subj. |
| H.S. class whose topics include heredity |
| Rocky subj. |
| Alien subj. |
| Subj. for nonnative speakers |
| Observatory subj. |
| Subj. with knowns and unknowns |
| H.S. dropouts' documents |
| An H.S. dropout may earn one |
| Earth Day subj. |
| Emigrant's subj. |
| Subj. of a "Delayed" sign |
| Tom Clancy subj. |