"I finished my homework by the end of the day. " Decide if the sentences are correct () or not ().

"Before the class finishes, I will have completed the task. " Decide if the sentences are correct () or not ().

"They have visited three countries by the end of their holiday. " Decide if the sentences are correct () or not ().

"I will write two essays by the end of the week." Decide if the sentences are correct () or not ().

"By the end of this year, I will be learning English for four years." Decide if the sentences are correct () or not ().

"They have hiked up every mountain in the area by the end of the month." Decide if the sentences are correct () or not ().

"Please do not arrive before 7 p.m. I will not cook dinner by then." Decide if the sentences are correct () or not ().

"I am sure she will have return your call by the end of the day." Decide if the sentences are correct () or not ().

Write school rules using the given modal verbs below. must need to can should have to แต่งประโยคโดยใช้กริยาช่วยที่ให้มาตัวไหนก็ได้เกี่ยวกับกฎของโรงเรียน

If we leave now, we ..............(arrive) there by lunchtime.