Last week, I bought an interesting story book, _____ is very beautiful.
| A．which cover. | B．the cover of which. |
| C．its cover. | D．the cover of whose. |
For better sound effects, he was asked to speak ______ the microphone during the whole process．
| A．in | B．for |
| C．into | D．from |
So heavy ______ that I felt great relief after taking it off．
| A．is the load | B．the load was |
| C．was the load | D．the load is |
My granny does crossword puzzles each day ______ her mind sharp．
| A．to keep | B．kept |
| C．having kept | D．to be kept |
Susan's voice still remained calm ______ she was getting annoyed．
| A．even if | B．as long as |
| C．as if | D．now that |
—How was your trip to Switzerland?
—Perfect 1．How I wish you ______ with us!
| A．have been | B．are |
| C．were | D．had been |