When you use "had to", can a "but" follow it? For example, can you say "I had to do my homework but I didn't." In a Japanese grammer book, it says "had to" is used only when you "did" the thing you...
What is the difference of the word "Protect" and "Preserve" ? Especially when it is used to mean protecting something. Sorry if my English is strange. (Preserve: to save something or someone from...
