单项选择题
A.off B.side C.out D.down
It’s more （） to buy a season ticket if you travel every...
单项选择题It’s more （） to buy a season ticket if you travel every day.
A.cheap B.economic C.economical D.saving
To study a foreign language,（）A.a good dictionary shoul...
单项选择题To study a foreign language,（）
A.a good dictionary should be boughtB.buying a good dictionary is necessaryC.you should buy a good dictionaryD.it is necessary that you will buy a good dictionary
He thoroughly understood the society（）A.he had grown up...
单项选择题He thoroughly understood the society（）
A.he had grown up B.which had he grown up C.in which he had grown up D.he had grown up in it
