Long time no see．Haven’t you graduated from college?—Yes．I____business management for 4 years in Beijing

Where ______ your food—I only have two hamburgers. They ____ on the table.

’s the noise It sounds as if itcomes from upstairs –______ It must be thewindow-cleaner working , nextdoor

I have some difficulty ______English.

Paul invited us to take part in a party tomorrowevening.— ______ Is tomorrow his birthday