Could you guys help me with them you guys can do as many asyou want this will be 20 PTS!!!!

1. Which sentence contains an inappropriate shift in tense?
A.David ran into the room when he hears the music.
B.When the buzzer sounds, everyone in the factory is ready to go home.
C.Occasionally, Steve's boa escapes and startles someone in the kitchen.

2. Which sentence contains an inappropriate shift in tense?
A.Martin is wearing the sweater that he bought last year.
B.Geese are swimming in the lake whenever we visited the park.
C.I drank all my milk, but my brother is still finishing his.

3.Which sentence contains an inappropriate shift in tense?
A.As I came in the front door, Eddie is going out the back door.
B.The barrier will drop down every time that a train approaches the crossing.
C.If anyone knows the answer, she does.

4.Which sentence contains an inappropriate shift in tense?
A.By the time the sun set, I will have been working for eight hours.
B.As long as we travel together, we will have a wonderful time.
C.When the summer ends, that swimsuit will have been worn hundreds of times.

5.Which sentence contains an inappropriate shift in tense?
A.As the wagon was rolling down the hill, a rear wheel breaks, and Tom yells, "Whoa!
B.Has Eric seen the puppies, or are you saving them for a surprise?
C.Before you go out, will you read a story to your sister?

6.Which word group best completes the sentence without introducing an inappropriate shift in tense?
"Whenever my sister is chopping onions,"
A.she always is keeping tissues nearby.
B.she always kept tissues nearby.
C.she always keeps tissues nearby.
D.she always has been keeping tissues nearby.

7.Which word group best completes the sentence without introducing an inappropriate shift in tense?
"The family watched as"
A.the meteor shower starts.
B.the meteor shower start.
C.the meteor shower started.
D.the meteor shower will be starting.
8.Which word group best completes the sentence without introducing an inappropriate shift in tense?
"As the bus pulled up,"
A.I realize that I forgot my package.
B.I realized that I forgot my package.
C.I had realized that I forgot my package.
D.I am realizing that I forgot my package.

9.Which word group best completes the sentence without introducing an inappropriate shift in tense?
"I had bought more fruit because"
A.my sister ate the last apple in the bowl.
B.my sister will eat the last apple in the bowl.
C.my sister will be eating the last apple in the bowl.
D.my sister eats the last apple in the bowl.
10.Which word group best completes the sentence without introducing an inappropriate shift in tense?
"I had been making a sandwich"
A.when the doorbell rang.
B.when the doorbell will ring.
C.when the doorbell has rung.
D.when the doorbell rings.