The traffic was very heavy and __________ we didn't arrive on time.
The class _____ 80 students is hard to manage.
----Who do you think should answer for Li Tianyi’s behavior? ----Actually, I think it is their parents _____.
If you are in a warmer place and can get your skin _____ to the sun for 20 minutes per day, you will need less vitamin D. A. exposingB. being exposed C. been exposed D. exposed
----Is there any possibility _____ you could pick me up at the airport? ----No problem.
The teacher stressed again that the students should not _____ any important details while retelling the story.