The preferring (A) of many (B) Western cultures for maintaining (C) a physical distance of at least (D) three feet during social interaction is well documented in anthropological studies.
A.preferring (A)
B.many (B)
C.maintaining (C)
D.at least (D)

We are intimate (A) friends, and he can make (B) me to laugh (C) even when (D) I’m upset.
A.intimate (A)
B.make (B)
C.me to laugh (C)
D.even when (D)

Don’t forget buying (A) some (B) milk because (C) the milk in the fridge turned (D) sour some days ago.
A.buying (A)
B.some (B)
C.because (C)
D.turned (D)

It is essential that (A) you bought (B) a new shirt (C) for (D) the upcoming interview.
A.that (A)
B.bought (B)
C.a new shirt (C)
D.for (D)

My car isn’t working (A) well these days, so (B) I think I need to have it (C) repair (D).
A.isn’t working (A)
B.so (B)
C.it (C)
D.repair (D)

His parents don’t (A) allow him (B) staying out (C) late on weekdays (D).
A.don’t (A)
B.him (B)
C.staying out (C)
D.on weekdays (D)

The suspect is believed (A) to use (B) a baseball bat to hit (C) the old man (D) last night.
A.is believed (A)
B.to use (B)
C.to hit (C)
D.the old man (D)

Climbing (A) down the tree, one of the eggs was broken (B) so (C) he decided to throw it (D) away.
A.Climbing (A)
B.was broken (B)
C.so (C)
D.it (D)

It is believed (A) that in the near future (B) robots will be used to doing (C) household chores (D).
A.It is believed (A)
B.in the near future (B)
C.will be used to doing (C)
D.household chores (D)

Having not been (A) to the sea before (B), the children couldn’t fall asleep (C) due to (D) their excitement.
A.Having not been (A)
B.before (B)
C.fall asleep (C)
D.due to (D)