________ astronauts go on spacewalks, they wear spacesuits to keep themselves safe.
Though
Till
When
Unless
There ___________ some bread and two cups of milk on the table.
I go to bed at 9:30 p.m. with “___________” to my parents.
—Do you have any ___________? —Yes, I like singing and playing tennis.
The boy in a white shirt is my cousin. ___________ is good at singing.
Li Hua looks strong and plays football very ___________.