【单选题】
Which sentence is correct?
①
On entering the classroom, the students stood up and said, Good morning!
②
On entering the classroom, the teacher was greeted by the students with Good morning!
【单选题】
Which sentence is correct?
①
Returning home from work, he saw supper waiting for him in the kitchen.
②
Returning home after work, supper was waiting for him in the kitchen.
【单选题】
Which sentence is right?
①
I dont think that he is not right.
②
I think he is not right.
③
I dont think that he is right.
④
I think he was not right.
【单选题】
Scientists say it may be five or ten years __________ it is possible to test this medicine on human patients.
①
since
②
before
③
after
④
when
【单选题】
The human race has already paid a heavy price for its slow _____to environmental threats.
①
response
②
responsibility
③
resolution
④
resistance
【单选题】
Don’t be too ____ about things you are not supposed to know. ?
①
strange ?
②
amusing ?
③
curious ?
④
conscious?
【单选题】
All of us think it difficult to ____ the difference between the two things.
①
talk
②
speak
③
lecture
④
tell
【单选题】
You cannot remember things_________ you are tired or unhappy.
①
why
②
what
③
where
④
when