Subject-verb agreement：練習問題

Choose the correct verb form:
The pieces of furniture in this room ______ very old and need to be replaced.

The group of dancers ______ performing on the stage right now, and they look very professional.

Identify the correct verb form:
Ten kilometers ______ a long distance for a young child to walk in one go.

Which verb correctly completes the sentence?
My brother and his friend ______ to the library together every Saturday.

Choose the correct word to fill in the blank:
The news about the upcoming school picnic ______ quite exciting for the Primary 6 students.

Complete the sentence using the correct form of the verb 'to be':
Fifty dollars ______ too expensive for a simple plastic notebook.

Fill in the blank with the correct form of the verb in the brackets:
The player, along with his teammates, ______ (practice) hard for the final match now.

Rewrite the sentence by choosing the correct verb form:
A number of students ______ (was / were) absent because of the heavy rain this morning.

Identify the subject-verb agreement errors in the following sentences and write the corrected versions:

(a) Every student and teacher have to wear a mask in the school hall.
(b) Ten kilometers are a long distance for a young child to walk.

Determine if the following sentence is grammatically correct. If not, identify the error and rewrite the sentence correctly:

Either the cat or the dogs has broken the vase in the living room.