When you come across a new word , you should learn to guess the meaning of the word according to the ________ clues , which may be in the sentence that comes before the word.
They have been waiting for many hours to see the singer, but the airplane must have been _____.
Today, housework has been made much easier by electrical _____.
Pack the cake in a strong box, or it might get _____ in the post.
. Professor Smith and Professor Brown will _____ in giving the class lectures.
In a typhoon, winds _____ a speed greater than 120 kilometers per hour.