They were so far away that I couldn’t _____their faces clearly.

Thank you for ______ me to study English.

Did Jack come back early last night——Yes. It was not yet eight o’clock _______ he arrived home.

The conductor blew his whistle and the train slowly ________.[ ]

Which would you like to read, paper books or e-books—My parents only allow me to read paper books. They my eyes.