What’s under the desk? ________.
A．It’s a football
B．I can see a set of keys
C．They are red box
The little girl felt sad ________ her pet dog died.
A. why B. because of C. because
－What’s your plan during the summer holiday?
－I want to go on a _________ visit to Beijing.
A. five-day
B. five day
C. five days
The NBA_____ in 1946. It has a history of over 60 years.
A. came from
B. came out
C. came into being
—What a nice picture!
—Thanks. It’s a photo ________ my family.
| A．of | B．for |
| C．in | D．with |
Welcome you _____ our school. They are my students.
| A．on | B．in |
| C．to | D．at |