-- _____is that used for?---_____ the floor.
Mary has lived in China for 3 years, so she ______ to the life here.
There was plenty of time. She ________ .
-----________ he be watching TV now?------Yes, he ________ be watching TV now.
Astronauts in a spaceship have to _______weightless conditions _______are quite different from ______are on the earth.
. — Can you answer my question? --Sorry, I____________ . Would you repeat that question?