---Why didn't you go to the party last night?
---Because I was waiting for Sam in his office _______ he came back.
| A．for | B．until |
| C．since | D．from |
My friend Jane works as _______as his brother.
| A．hard | B．harder | C．hardest | D．much hard |
This TV show is very __________, and you can learn many things.
| A．educational | B．meaningless | C．serious | D．boring |
_________ it is snowing, it isn’t very cold.
| A．If | B．When | C．Because | D．Although |
Tom and Mike are _____________.
| A．sisters | B．boy | C．friends | D．brother |
Please call ________ ___________ 4365874.
| A．I , to | B．me, to | C．I, at | D．me, at |