. I’m not sure what time I’ll arrive, maybe half past seven. ___, I’ll be there as early as possible.
| A．Anyhow | B．However | C．Thus | D．Therefore |
She was so angry that she rushed out into the rain ___ I could stop her.
| A．until | B．before | C．after | D．as |
All these gifts must be mailed immediately ____in time for Christmas.
| A．to have received | B．to receive | C．to be receiving | D．to be received |
“I ___in the room, watching TV.” I told the policeman who had driven here to question me.
| A．stayed | B．stay | C．was staying | D．am staying |
____, I could not memorize the text.
| A．However hard did I try | B．However hard I tried |
| C．However I tried hard | D．However I had tried hard |