【单选题】
My son is Andy. My brother’s son is Ben. Andy and Ben are ____.
【单选题】
Education and medical care are very ____ in theUnited States.
【单选题】
Since the road is wet this morning, ____ last night. ?
④
it must have been rained?
【单选题】
The factory is said ____ in a fire two years ago.
【单选题】
The prices of the agricultural products have been ____ steadily in the past few years.
【单选题】
The organization has developed several techniques useful to other groups ____ the similar work.
【单选题】
____ it is you found, you must give it back to the person it belongs to.
【单选题】
If you don’t think it necessary to make ____ any missed lessons, speak up now.
【单选题】
No sooner had he sat down to lunch ____ there was a knock at the door.
【单选题】
When the teacher had ____through with the class, they felt very ashamed.