It was ________ of my secretary not to have let others disturb me this morning when I was occupied with my work.
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When I passed by, I heard her _____ in the room.
| A．sings | B．sang | C．singing | D．to sing |
We are going to visit an old temple _____ the 12th century.
| A．is dated back to | B．dated from | C．dating back to | D．that is dated from |
I’ll lend you my bike_____ you take care of it.
| A．as long as | B．as far as | C．even if | D．even though |
It was when she was sleeping in her bedroom __________ a thief broke into the house.
| A．which | B．that | C．where | D．than |
Future agriculture should depend on high technology __________ traditional methods.
| A．as good as | B．as far as | C．as well as | D．as long as |