【单选题】
Earthquakes ( ) in the region about once a week, without the people feeling them.
【单选题】
20. Its impossible for all the people to get jobs because ______ of them are not fit for them.
【单选题】
“I haven’t read ____ of the last four chapters, so I know little about them.”
【单选题】
As the enterprise you inquired about is _______ in trading plastic products, we advise your caution in transaction with them.
【单选题】
The deaf people always have the feeling of ( ).
【单选题】
As a realist, Mark Twain concerned particularly about the local character of a region, which came about as “_________”.
【单选题】
Without them you will not be able to( ) the tasks
【单选题】
Something ( ) hung in the air between them.
【单选题】
I try to___ swimming at least once a week.
【判断题】
I have my house cleaned once a week.