They ___classes when the earthquake happened.
| A．had | B．would have | C．were having | D．are having |
Keep yourself confidence up by taking gradual steps forwards, rather than freezing, when ______ with what seems like great trouble.
| A．to face | B．face | C．facing | D．faced |
I’ve already told you that the fourth and last part of the article ______ the most difficult to understand.
| A．is | B．was | C．are | D．were |
All the neighbors admire this family ______ the parents are treating their child like a friend.
| A．why | B．where | C．which | D．that |
It was from the third floor of the teaching building ______ Tom shouted to me, “Wait till I set off.”
| A．what | B．that | C．which | D．where |
Now, with a stronger economy, people ______ enjoy a better quality of life.
| A．would | B．must | C．can | D．need |