[Grammar] Help me some sentences

hai_lua_t2 said:

1. The fundraisers located themselves next to the entrance to take advantage of all the people .... through
a. passed b. passing c. passes d. pass

2. Professor Zagrov praised Mr. Modello for his literary contribution before presenting him with what .... money the group had gathered
a little b. few c. small d. less

3.I don't understand ..... of these is to be included in the shipment
a. which b. that c. some d.what

4. Mrs. Stein, the chairwoman and founder of Women's World, .... to an enthusiastic audience at the fashion show
a. who speak b. was spoken c. that she spoken d. spoke

The answers are: 1.b, 2.a, 3.a, 4.d I don't know why. Please explain for me clearly. Thanks so much!

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hai_lua_t2 said:

Oh, I'm sorry! the answer is:
1a because I thought the tense of sentence is in the past so I chose it. But now, I think "through" is a preposition so "passing" is right
"Passing" is right.
You can have two different tenses in the one sentence.
They located there (past) to do something in the future/present.
"the people passing through" means "the people who are passing through".

2c I thought it was right
2a "what little money."

3 I didn't know how to answer it
3a "which"
4a because I thought this sentence needed a[STRIKE]n[/STRIKE] relative pronoun
4d. "She spoke ..." There's no relative clause in this sentence.
Mrs. Stein, the chairwoman, spoke to an enthusiastic audience.
Thank for your support!

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