.—You may find the key to the maths problem on page 107 . —Ah, it’s so simple . I wonder why I of that .
—How did you get in touch with Mrs.Green?—Well,it seems to me that you've forgotten ________ me her telephone number the other day.
Has the boy who was made use of ________ realized his mistakes?
Since the work is so tiring ,I won't accept it even if ________ twice as much the money.
Some of our industrial products may well be said ________ advanced level.
With the plane ________,some passengers on board feel sick and want to throw up.