My uncle isn’t a doctor, but your uncle _______.
There will be less pollution ___more people use public transportation .
Our teacher was very happy because _____failed the examination.
Daniel, ___ play with the mobile phone while you're walking in the street.
--Do you have any plans for this summer vacation? --I'm not sure. I ___ take a trip to Taiwan.
TFBOYS' songs ____ sweet and many of us like listening to them.