The children all _______ sadly at the broken model plane and _______ quite sad.

 The Adventures of Huckleberry Finn, _______ the USA in the mid 19th century, _______ a masterpiece.

(2012·济南高二检测)—Mum, I can’t see any point in studying hard. —Come on, dear. Years of hard study will surely _______ in your future career.

 Measures _______ to raise the employees’ salaries if the prices are rising all the time.

I have to choose another way back home, because the road to my community _______ at the moment.

. —Tony, it seems that you have been very busy all the time，what do you think of your occupation now?—Just so-so. I’ve decided to quit my job in the company next month, where I ____ for five years.

 —Alice, you have won the first place! —Pardon? I ______ I would fail the exam this time.

Microsoft ended support for Windows XP after April 8, which _______a major operating system for some Chinese computer users, and advised users to upgrade to Windows 8.1.

— Why do we get up so early?— If we _______ the flight we would have to stay here for another day. 

— Have you finished your work? —Yes. Actually, I _______ it before you came.

The real reason for the fire _______ a burning cigarette end.

When you don’t know a word, you can _________ in the dictionary. 

She told me that she had mailed part of the products and that the rest ______ in a few days. 

The retired teacher is said to have returned from the USA, where he ______ by some of his old students.

My mother _____ all the cleaning for my family, but recently she has been too busy teaching to do it. 

Tom, you play the violin so well. But I ______ you can play the violin.

—Why not find a new job?—Why should I? I _____________ as much，but I like what I'm doing．

—Is Tom still smoking? —No．By next Saturday he _____________ for a whole month without smoking a single cigarette.

I must admit you _____________ but I'm afraid the answer is still no．

Try not to cough more than you can_____since it may cause problems to your lungs.