If H2 burn in O2, we can get _____.
| A．H2 | B．H2O | C．O2 | D．H2O2 |
–Is this his key? -No, it’s .
A. my B. I C. mine
–Is that girl your sister?
-No, .
A. it is B. it isn’t C. she isn’t
-.
- Yes. R-U-L-E-R, ruler.
A. What’s this?
B. Can you spell it?
C. Is this your ruler?
Here is a nice photomy family.
A. of B. in C. at
-, is this your ID card?
-No, it is Lily’s.
A. Sorry B. Excuse me C. Thanks