Helen has just heard the news from her father ________ her boyfriend David will come back soon.
| A．when | B．how |
| C．which | D．that |
People have always been curious ______ how living things on the earth exactly began.
| A．in | B．at | C．of | D．about |
The father as well as the three children ______ every Sunday afternoon in winter.
| A．is going | B．go | C．goes | D．are going |
—Did Alan enjoy seeing his old friends yesterday?
—Yes, he did. He ______ his old friends for a long time.
| A．didn't see | B．wouldn't see | C．hasn't seen | D．hadn't seen |
．The moment I got home, I found I _______ my jacket on the playground.
| A．had left | B．left | C．have left | D．was leaving |
The hotel wasn’t particularly good. But I ______ in many worse hotels.
| A．was staying | B．stayed | C．would stay | D．had stayed |