He _______ for two years. We are still sad about his _______.
While I ________to the programs, my mother ________outside.
It ______ the workers about 20 months to build the Huhang highspeed railway.
He was _______ pain, __________ he didn’t cry.
My sister got a beautiful present on her ________ birthday.
Let’s stop _______ a rest. I am so tired.