そんなに高くはならないはず。It shouldn’t become that costly.
BTL 1 や things like
Activity Book
17-7-1R “Time” or “notwithstanding”? 並行か矛盾か
17-7-2R Reasonable expectations 妥当な予想
17-7-3RW Responding ambiguously 曖昧に答える
Glossary
Symbol list
Teaching tips and AB Audio scripts available at Teacher Site.
ACT 17-6
ACT 17-8R