Sometimes I work _____ the day and sometimes _____ night. [ ]

I hope Jim won’t mind lending you his new digital camera. — He ___________. I have already borrowed one from my cousin, David.

sister is twelve,and is a student.

As students, we should work hard and do ________ best to realize our dreams.

After class, I like playing computer games and chatting ______ my friends ______ the Internet. [ ]