Mrs. Smith finds it hard to clear up the mess, as her children are alwayswhenever she tries to.
December 17, 2011 was a sad day for the North Koreans, ______ their top leader Kim Jung-ill passed away unexpectedly.
—You seem familiar with Mr. John? —Sure, we ______ together for three years in the 1990s.
Most students think this book is useful as it _______ all the basic grammar rules they need to know.
—Mr. Smith, would you have some more ice-cream? —No, thanks. It’s very good, but I have to ______ my weight, you know.
Because they hadn’t booked a room in advance, there were______ left when they arrived at the hotel.