“Red envelope” fever on WeChat_ _ the country since January 26, 2015.
We walked for ___________ hours before we got to the top of the mountain.
Only ___________ the students exercise for more than half an hour every day.
My parents love me ___________ they don’t have much time to stay with me.
It’s important ___________ all of us ___________ English loudly in the morning.
After the vacation, I’m ___________ heavier than before.