89.He has forgot all that he did last night.

→He has forgot ____ he did last night.

88.______ with the last year, the food production has increased by 30%.

87.It is wonderful _______ work with pleasure.

86.Since then, Meryl Streep ______ in more than 30 films such as Sophie’s Choice, out of Africa and Music of the heart.

85._____ this opportunity, or it will never come again.

84.Modernization is the key to _______ the development of education.

83.The Royal Palace used _____ many tourists every year.

82.I did suggest ___________ the newly-developed technology to China.

81.After ______ into Harvard University, he decided to study harder.

80.If _____ green, the door might look more beautiful.