It was not a formal occasion, so we were asked to wear （) clothes.A、regularB、informalC、s

Which of the following pronouns is used as a formal subject？A．It was two o"clock in the mo

Which of the following sentences has a formal subject（形式主语)？A．It was 5 o"clock when he

"To tell the truth is not always essential. On some occasion it is necessary to tell lies

Not much was known about yellow fever in the late 1700s, but one fact was inescapable— it

I found the formality of the occasion irritat

I found the formality of the occasion 【irritating