With that calm and _____ expression of hers, our anxiety almost disappeared into thin air.

He was educated at a local grammar school, _______ he went on to Cambridge.

It is every citizen’s duty to go out to______ the snow on the street______ it stops falling so as to make itconvenient for traffic to pass. .

As time went by, the boy ____ to understand why his father was so strict with him..

After Yang Li wei succeeded in circling the earth, _____ our astronauts desire to do is walking in space.