Step 1: Understanding the function of the verb.
In the given sentence, the word
“teach” must function as the
subject of the sentence. When a verb acts as a subject, it usually appears in the form of a
gerund (verb + ing).
Step 2: Applying the gerund rule.
The gerund form of
teach is
teaching. Therefore, the correct sentence becomes:
Teaching French needs great care.
Step 3: Checking the options.
- (A) teaching: Correct. The gerund acts as the subject.
- (B) teach: Incorrect. The base form cannot act as a subject in this structure.
- (C) to teach: Possible in some contexts, but the gerund form is the correct and more natural structure here.
- (D) having: Incorrect because it does not match the verb needed.
Step 4: Conclusion.
Thus, the correct sentence is:
Teaching French needs great care.
Final Answer: teaching.