. Although punctual himself, the professor was quite used ___________ late for his lecture.
| A．to have students | B．for students to be | C．for students’ being | D．to students’ being |
Life is a journey _____with hardships, joys and special moments.
| A．filled | B．to fill | C．filling | D．having filled |
——Lily is going to make a presentation in class this afternoon.
—Oh, really? I _____it was Michael’s turn.
| A．think | B．have thought | C．thought | D．am thinking |
_____H7N9 is a deadly virus, it is still safe to eat thoroughly-cooked chicken.
| A．Until | B．While | C．If | D．Since |
The house is dirty because itsince they moved out.
| A．doesn’t clean | B．isn’t cleaned | C．hasn’t cleaned | D．hasn’t been cleaned |
With hundreds of attractions, Beijing is a city _____ makes a lasting impression on itsvisitors.
| A．which | B．where | C．what | D．when |