Question

Henry will not be able to attend the meeting tonight because _________
a. he must to teach a class
b. he will be teaching a class
c. of he will teach a class
d. he will have teaching a class

Answer 1

he will be teaching a class

Answer 2

‘Henry’ will not be able to attend the meeting tonight because ‘he will be teaching a class’.

Answer: Option (b)

Explanation:

In this sentence, option b is the correct answer. This is an example of an adverbial clause. This option is correct as it is grammatically right and is also in agreement to the verb and the subject. Option a, c and d are all grammatically incorrect as the modals have either been wrongly used or the verb is not in agreement to the subject. Also these options do not follow the SVO order.