When she realized I _______ her, she quickly made a pose, smiling.
The astronauts have to lie ________ the floor of the spaceship to fight against the great pressure during the flight.
–________ your new desk-mate?–Well, she is nice except that she talks a little too much.
–I can hardly make myself understood in Chinese. Would you please give me some help?–________. We are trying to help you.
________ fails to realize the importance of improving the learning strategies will have great difficulty in learning.
I am doing a job ________ I have to do the same thing day after day. Oh, it’s just terrible.