Whenever a patient needs an injection of Penicillin, the doctor does need to make sure whether his patient is ___ to the medicine.

Would you like to go ______for a vacation —Yes ,I’d love to .

Why was Professor Wang unhappy recently—Because the theory he insisted on ________ wrong.

The flowers ______ my mother, but my sister thought they were for her and took them

_____ it was very cold, _____ my friend still went swimming in Jialing River this morning.