Mr. Black built fences to the boundaries of his land.
A: mark
B: sign
C: confine
D: post
A: mark
B: sign
C: confine
D: post
举一反三
- Mr. Black took his daughter to the classroom.
- Bill wants to invite Mr. Black to his city to meet Mr. Anderson.
- Mr. Black ____(fuel) his car twice a month.
- Mr. Black with his family (be) ______ visiting China now.
- Safety mark and protective mark refer to A: Transport mark B: Shipping packing mark C: Indicator sign D: warning sign