________ tigers in the world has reduced(减少) in the last fifty years．
| A．A number |
| B．The number |
| C．A number of |
| D．The number of |
－are my keys?
－ They are under the bed.
| A．Where | B．How | C．What | D．Who |
My English is good. ________?
| A．What about yours | B．What about you |
| C．Are you good | D．How do you spell it |
Here is my . My father, mother and I are in it.
| A．pencil box | B．tape player |
| C．family photo | D．model plane |
My uncle' s son calls my father
| A．son | B．uncle | C．cousin | D．daughter |
These________ my friends and that________ my aunt.
| A．is, are | B．are, is |
| C．is, is | D．are, are |