When you have western food, you should use knife and fork properly. The underlined word means “__________".
Much to my, I’m unable to accept your kind invitation.
—Shall we hang out tomorrow morning? — ________ I’ll save the morning for my essay.
-- Isn’t that Ann’s husband over there? -- No, it ________ be him. I’m sure he doesn’t wear glasses.
I didn’t believe the reasons he explained _____ me.
He is difficult ________.