Relaxes does not follow the pattern rule
It would be past tense because when you say something occurred you are saying that it has already happened
Answer:
12 Technological Advancements of World War I
Tanks. In 1914, the “war of movement” expected by most European generals settled down into an unexpected, and seemingly unwinnable, war of trenches. ...
Flamethrowers. ...
Poison Gas. ...
Tracer Bullets. ...
Interrupter Gear. ...
Air traffic control. ...
Depth Charges. ...
Hydrophones.
Explanation:
Answer:
It's D or C
Explanation:
Both make sense to me but I'm not sure. I suggest trying D, if not then C. I hope you found this helpful.