—Did you happen to see _________ black and _________ white cat?—Is she missing?I told you to take care of her.
—Excuse me, I wonder if you can help me? — Sure. ______ ?
---Please sit down and have a break. You have been working for three hours. ---No, thank you. _____.
The new comers found it impossible to _____themselves to the climate to make permanent homes in the new countries.
Reciting does much good in language learning and it _____helps to learn science subjects better.
---What’s the matter with your boyfriend? ---I can’t stand _____when he often ignores me and talks with other girls.