—We'll go to the party to be held in Qinghai Grand Theater at 8 tonight. Could you join us?
—I'm afraid I can't. I ________ the holiday plan with my friends.
| A．am discussing | B．have discussed |
| C．will be discussing | D．will have discussed |
New medicines and instruments ______ every day to extend life.
| A．develop | B．are being developed |
| C．are developing | D．have developed |
. “Mary looks hot and dry” “So _____ you if you had so high a fever.”
| A．do | B．are |
| C．will | D．would |
What the boy enjoys _____ to have a room of his own.
| A．being | B．to be |
| C．is | D．are |
The president _____ a cool reception when he visited London.
| A．gave | B．was given |
| C．had given | D．had been given |
The theory he sticks to ______ to be of no use in our studies.
| A．proves | B．prove |
| C．proving | D．be proved |