Only after he realized the significance of mastering two languages ______ English carefully.

I had intended to go on a diet, but the dishes at the party were simply impossible to _______ .[ ]

_______ it is to help the old men clean the houses!

Look, this is the bestseller everyone’s been talking about for the last two months.—How in the world ___________ a copy

Paul seems upset today—Yes，he wrote an application letter to Neusoft but waited__________for a reply