There are many trees on ________ sides of the road.
| A．either | B．both | C．neither | D．every |
He will be back in ＿＿＿ hour.
| A． / | B． the | C． a | D． an |
What ＿＿＿ interesting book it is?
| A．a | B． an | C． the | D． / |
English is＿＿＿ useful language in ＿＿＿ world.
| A． an, the | B． a, the | C． the, / | D． /,the |
There is ＿＿＿ orange in the bottle.
| A． a | B． an | C． the | D． / |
—I’d like you to tell me something about Shen Nongjia.
—I’m sorry, but neither Jack nor I ____ there.
| A．have been | B．had been | C．have gone | D．has gone |