Answers to Review of verb tenses: page 4

Please note that some of the sentences include gerunds and infinitives which we are going to study in unit 5, don't worry about them, just focus on the senteces with verb tenses

EXERCISE 1
2C, 3B, 4A, 5B, 6C, 7A, 8B, 9A, 10C, 11C, 12B, 13C, 14B, 15A, 16B, 17C, 18C, 19B, 20A, 21B, 22B, 23C, 24C, 25A, 26A, 27C, 28A, 29B, 30B, 31C, 32B, 33A, 34C, 35B, 36C, 37A

EXERCISE 2
PART A
2 stayed, 3 had, 4 have already decided, 5 is looking forward
PART B
1 was shopping, 2 left, 3 had put, 4 am, 5 gave

Attention:

1. On page 2, sentence 3, the correct answer is "John always eats breakfast before he goes to class. Tomorrow before he goes to class, he will eat breakfast or is going to eat breakfast" but not "he will have eaten breakfast", because it's not a previous action, sorry it was my mistake.
2. On page 2, sentence 9 there was some debate going on, but the answer is clear "He hasn't finished reading it yet. He has been reading it (for the past three days) because his English teacher assigned it." You cannot say "He is reading it (for the past three days)", that's wrong.
3. On page 5, sentence 9 the answer is "was saying" or "said", both are acceptable
4. On page 1, exercise 1, sentence 9 the correct answer is "We washed the dished and cleaned up the kitchen after our dinner guests had left or after our dinner guests left. (We need the past perfect because it's a previous action; however, the word after makes it clear that the previous action is the guests left and after I washed and cleaned, this is why in this sentence the past perfect is not necessary to indicate a previous action)