－What do you think of my answer to the questions?
－Sorry. What’s that? I______ about something else.
| A．thought | B．had thought |
| C．am thinking | D．was thinking |
__________ I was talking on the phone, my mother arrived at home.
| A．when | B．until | C．while | D．although |
--- Do you have any plans for this weekend?
--- I am not sure. I ________ go to visit my grandmother.
| A．must | B．need | C．can | D．may |
--- I called you yesterday afternoon, but nobody answered.
---Oh, I ___________ in the playground.
| A．play | B．played |
| C．am playing | D．was playing |
---_______ is the population of your hometown, Lucy?
---It’s about 15,000.
| A．How many | B．How much | C．What | D．How |
All the students shouted when they heard such_______ exciting news.
| A．a | B．an | C．/ | D．the |