The farmer had to wear heavy boots in the winter because the fields were too wet and（）

单项选择题Sixty per cent of television viewers chose him as their（）actor.

A.popular
B.desirable
C.favorite
D.superior

单项选择题In the future, more（）should be placed on the education of the young.

A.crisis
B.implications
C.impressions
D.emphasis

单项选择题Only a(n)（）few were invited to the dancing party.

A.elect
B.special
C.select
D.selective

单项选择题Construction of the railways helped to develop the national （） of Tanzania and Zambia.

A.economic
B.economies
C.economics
D.economical

单项选择题Take it（）It is nothing but a joke.

A.easy
B.easily
C.serious
D.seriously

单项选择题I'm（）to graduate in the next half of the year.

A.owing
B.thanks
C.due
D.because

单项选择题When I came through the customs at the airport, I had to pay（）on a clock I had bought.

A.taxes
B.duty
C.fines
D.fees

单项选择题Each year in the United States, many black teenagers（）of school, either because they cannot keep up or they have to work to support their family.

A.go out
B.drop out
C.check out
D.pull out

单项选择题Attendance at football matches have（）since the coming of television.

A.dropped in
B.dropped off
C.dropped out
D.dropped down

单项选择题The engine has broken and the boat is（）on the water.

A.flowing
B.floating
C.drifting
D.sailing