【单选题】
Some scientists____________ that flowers open at particular times because their internal clocks tell them to do so.
【单选题】
Quizzes are part of the lecture program to keep students engaged and keep them _________, for students to be able to check that they understood what was covered.
【单选题】
Operations which left patients ____ and in need
of long periods of recovery time now leave them
feeling relaxed and comfortable.
【单选题】
Operations which left patients _____and in need of long periods of discovery time now leave them feeling relaxed and comfortable.
【单选题】
I ___ reading novels ___ watching movies. I like my own imagination when I read them.
【简答题】
Direction: Fill in the blanks with the words given below. Change the form if necessary.[integrity; conscience; yield; appoint; assure; ensure; demonstrate; clarify; preserve; scarce]2. Feeling that the directions for the exercise were difficult to understand, the students asked the teacher to[填空1]them by explaining them further.
【单选题】
When you meet someone who ____ deeply about something, you probably will want to ask them why they do so.?
【单选题】
Of course, most immigrants did not get rich
overnight, but the ____ of them were eventually able to improve upon their former standard of living.
【判断题】
Many young people, most___of them___were well-educated, headed for remote regions to chase their dreams.
【单选题】
__When can I come for the repaired computers? I need them tomorrow afternoon. __They______ be ready by 12:00.