Is that your best friend Kitty— No, it _________ be her. She flew to Singaporeyesterday.

95 I never expected you to turn ____ at the meeting I thought you were abroad

(2012·重庆高考)—________ you interrupt now? Can’t you see I’m on the phone?—Sorry Sir, but it’s urgent.

How many can you see in the kitchen

The headmaster ____ be in the office because the light is on.