If H2 burn in O2, we can get _____.
| A．H2 | B．H2O | C．O2 | D．H2O2 |
I’d like some _______ and _______.
| A．tomatoes; muttons | B．tomatoes; mutton |
| C．tomatos; muttons | D．tomato; mutton |
—Oh, Mary is not here these days. Is she ill?
—Her mother told me that she was in hospital.
| A．I am afraid so | B．I hope so | C．I don’t mind | D．I don’t think so |
----What will we do if we want to develop our village ?
---- A lot of roads ______. I think .
| A．have to build | B．are build | C．must be built | D．will build |
We____here two hours ago . So we___ _here for two hours .
| A．have arrived , have been | B．have come , have been |
| C．came , have come | D．arrived , have been |