____ people ____ robots in their home in 100 years ?
Go down this street and turn ______ / left / .You will see a library in front of you.
What a ______ / fain / day to climb the mountain with friends!
—How often do you do sports?—I do sports______ /twais/ a day.
Is it cheap ______ from Qingdao to Beijing by train?
What will the weather ______ the day after tomorrow?