He kept yawning in class this morning. That is _____ he stayed up late doing his homework last night.
--Our guests are coming from Shanghai at 10:30.---Oh, I ___ it ___11:30.
--Peter! Hurry up! You ___ on the phone. ---Oh, I ___ .Thank you.
Walk along this road and you’ll find it on the night.Here “along” means ___.
---Would you please show me ___ to run the machine?----Sure.
Great changes ___ in the recent years.