He __________ to come to the teacher’s office.

_____ to work, Bob bumped into an old friend, David, who he hadn’t seen for years.[ ]

We are going to have a partythe afternoon December 25th.[ ]

Qian Xuesen is known as China’s “father of space technology” and “king and rockets”.He died_____ October 21 at the age of 98.[ ]

You ______ write the poem down. Our teacher will give us a copy.