______as it was at such a time, his medical work attracted much attention.A．Being publishe

__________ as it was at such a time, his work attr

__________ as it was at such a time,

______, it was completed on time.A．Difficult as the task wasB．Difficult as was the taskC．A

It was at this time ____ he adopted the pen name “Mark Twain”.A: whenB: thatC: at whic

It was clever ______ you to make such a decisive decision at the moment.A、aboutB、ofC、

You cannot be______ careful in making the decision as it was such a critical case.A．soB．to