1.

(A) shaking hands

(B) holding … briefcase

(C) hanging … artwork

(D) turning on … light

2.

(A) taking off … jacket

(B) sweeping … floor

(C) closing … window

(D) using exercise equipment

3.

(A) sealing … envelope

(B) putting papers … folder

(C) talking … telephone

(D) arranging objects … desk

4.

(A) filling … cup

(B) emptying … trash can

(C) installing … light

(D) carrying … tray … food

5.

(A) loading … truck

(B) stacking boxes

(C) assembling … shelves

(D) fixing … machinery

6.

(A) message board … placed between … benches

(B) walkway … covered … flowers

(C) rocks … removed … garden

(D) trees … cut down