1. mr. baker (teach) his son to ride a bicycle

Kelas : X
Pelajaran : Bahasa Inggris
Kategori : present continuous tense
Kata kunci : to be + verb-ing

Pembahasan:
rumus present continuous tense:
(+) subject + to be (am, is, are) + verb-ing
(-) subject + to be (am, is, are) not + verb-ing
(?) to be (am, is, are) + subject + verb-ing?
Yes, subject (am, is, are) + to be
No, subject + to be (am, is, are) + not

1. Mr baker is teaching his son to ride a bicycle
2. It is raining very heavily
3. I don't think you are telling the truth
4. Today is a lovely day. The sun is shining and the birds are singing
5. Where is the puppy? It is lying under the sofa
6. Is fish living in the sea?
7. What are you doing during your spare time?
8. The students are listening to the teacher.
9. I am studying English now.
10.Tom is having a bath now.