--I don't know _______ that makes her music different from that of others.
--The true emotions, I think.
| A．how is it | B．how it is |
| C．what is it | D．what it is |
—I am sorry I didn’t do a good job．
—Never mind．________, you have tried your best
| A．Above all | B．In all | C．At all | D．After all |
Full use should be _______the natural resources to combat the energy crisis.
| A．made of | B．had of | C．taken of | D．done with |
Our classroom is very clean. Do you know who＿＿cleaned it﹖
| A．was it that | B．it was that | C．was it who | D．he was |
The great hall was crowded with many people, _____ many children _____on their
parents’ laps.
| A．including; seated | B．including; seating |
| C．included; sat | D．included; sitting |
________ of my sisters are experts in agriculture. Helping the farmers improve their
farming techniques _________their duty.
| A．Each; are | B．Both; is | C．Neither; are | D．None; is |