Answer:
1 My teeth were cleaned by an experienced dental hygenist.
2 The certificate was being presented to Dr. Hughes by them when we walked in.
3 Fewer tablets will be manufactured by companies in the future.
4 The body is protected against cancer by Vitamin C.
5 Penicillin was discovered by Alexander Fleming.
Explanation:
You need to almost reverse the sentence, make it so that the action is happening to the words in parentheses.
The correct choice is they.
Answer:
D. Diners who want a pleasant surprise should visit Chuck's