— I’m afraid that I may miss her at the airport.— Don’t worry. She ______ a bunch of flowers at that time.
Measures have been taken __________ the spread of the HIV.
In __________ preparation for Shenzhou If, scientists need __________ knowledge of weather changes.
—Thanks so much for everything. You have certainly made my stay very pleasant. —__________.
—__________ for the fire! —It's OK. I'll be careful enough.
I remembered __________ the door before I left the office, but forgot to turn off the lights.