Answer:
Chinese students were taught english by her.
A prefix is usually added directly to the base word but there several case where a hyphen is needed.
Answer:
Effect is the right answer.
Explanation:
Cause - a person or thing that acts, happens, or exists in such a way that some specific thing happens as a result; the producer of an effect:
Effect - something that is produced by an agency or cause; result; consequence.
Dat anser right dear be the letta. (A)