—Can you tell me _____when the teacher came into the classroom?
—Sorry, I don’t know.
| A．what were the students doing |
| B．what are the students doing |
| C．what the students were doing |
| D．what the students are doing |
__________ my brother __________ I am going to the basketball game tonight because we both love basketball a lot .
| A．Both , and | B．Neither , nor |
| C．Either , or | D．Not only , but also |
Great changes __________ in our school in the past few years .
| A．have taken place | B．took place |
| C．take place | D．will take place |
There __________ a big tree in front of my house . I could hear many birds sing in it .
| A．used to be | B．is used to be |
| C．used to have | D．was used to be |
Germany is __________European country and Korea is __________Asian country.
| A．an, an | B．a, a | C．a, an | D．an, a |
---Can you please tell me ___ ? ---It’s a quarter to eight.
| A．what time is it | B．what time it is |
| C．what time was it | D．what time it was |