单项选择题
A.elect B.special C.select D.selective
Construction of the railways helped to develop the nati...
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
Take it（）It is nothing but a joke.A.easyB.easilyC.serio...
单项选择题Take it（）It is nothing but a joke.
A.easy B.easily C.serious D.seriously
I'm（）to graduate in the next half of the year.A.owingB....
单项选择题I'm（）to graduate in the next half of the year.
A.owing B.thanks C.due D.because
