1. The store will shut down at the end of April, or sooner if all the merchandise sells out.2. The store will close down at the end of April, or sooner if all the merchandise sells out.3. J.C. Penney will close its store in Tampa Bay.4. This store is closed permanently.
 shut down close down close closed permanently停止營業 = shut down = close downclosed 通常指商家暫時關門，明天還會開門，除非有上下文表明指停止營業，如:J.C. Penney will close its store in Tampa Bay.This store is closed permanently.這些例句中的 close 表示關門大吉。
這是一個連環問題: 燃燒石油導致二氧化碳增加，二氧化碳增加導致溫室效應，溫室效應導致冰層融化、海平面上升。 (請填空)
This is a chain of probems. Burning oil leads to increase in carbon dioxide, which leads to the greenhouse effect, which leads to melting of glaciers, which leads to rising sea levels.