5. --- Do you know why Jane was so angry?--- Her roommate gave in to _________ and opened the letter addressed to her.
He often helps his teachers and classmates, and is good at almost all his subjects. , he is worthy of the honor of Top Students.
___________, I have to put it away and focus my attention on study this week.
We have made ________ a rule________ in the office.
With a lot of difficult problems _________, the newly-elected president is having a hard time.
I still remember _______ to the Tian’anmen Square and what I saw there.