The walls are made of (hollow) concrete blocks.
A: big
B: empty
C: long
D: now
A: big
B: empty
C: long
D: now
举一反三
- The walls are made of hollow concret blocks.（） A: big B: empty C: long D: new
- • The pipe used to be hollow, but now it is filled with earth and tree roots.• The bank robbers hid the money in a hollow tree. A: against the law B: out of shape C: empty
- Masonry consists of natural materials, such as brick and concrete blocks.
- How many blocks was the woman away from the corner where she waited when the bus driver finally let her off A: Almost one block. B: Almost two blocks. C: Probably three blocks. D: Probably five or six blocks.
- No matter how______ a hill may be, it is not necessarily worthless. A: vacant B: barren C: empty D: hollow