When caterpillars are fully-grown (A), they attach themselves to a leave or twig (B) and form a shell around itself (C) called (D) a cocoon.
A.are fully-grown (A)
B.to a leave or twig (B)
C.around itself (C)
D.called (D)

Dogs rely on their (A) noses as they can smell extremely well (B). If that is true, why does dog food smell (C) so terrible (D).
A.their (A)
B.well (B)
C.smell (C)
D.terrible (D)

I tried hardly (A) to remember (B) her full name, but I couldn't (C) because it is too (D) long.
A.hardly (A)
B.to remember (B)
C.couldn't (C)
D.too (D)

Narcissus, a character in mythology (A), gazed at his own (B) image in a pool so ardently that (C) he fell into itself (D) and downed.
A.a character in mythology (A)
B.his own (B)
C.that (C)
D.into itself (D)

There have been (A) lots of (B) car accidents (C) late (D).
A.have been (A)
B.lots of (B)
C.accidents (C)
D.late (D)

We didn't complete (A) understand (B) the teacher's instructions (C). Most of (D) us did not finish the assignment.
A.complete (A)
B.understand (B)
C.instructions (C)
D.Most of (D)

When one experiences (A) a change in diet by, for example, moving (B) to a new location, you (C) may also experience (D) temporary problems with the digestive tract.
A.experiences (A)
B.moving (B)
C.you (C)
D.experience (D)

Rock music (A) was original (B) a mixture of country music (C) and rhythm and (D) blues.
A.Rock music (A)
B.original (B)
C.country music (C)
D.and (D)

We have to (A) study their (B) lessons more carefully if (C) we expect to pass (D) this examination.
A.have to (A)
B.their (B)
C.more carefully if (C)
D.to pass (D)

Although (A) the quantity was (B) small, they had supplies enough (C) to finish (D) the experiment.
A.Although (A)
B.was (B)
C.supplies enough (C)
D.finish (D)