SINGAPORE IS FAMOUS FOR ITS __________ AND GREEN TREES. A. CLEA...

5. - DE DAP AN KIEM TRA 1 TIET LAN ANH 8 SACH MOI
DE DAP AN KIEM TRA 1 TIET LAN ANH 8 SACH MOI

5. Singapore is famous for its __________ and green trees.

A. cleanliness B. cleanly

C. cleaning

D. clean