C16 T4 P1

reserve, stock, act of providing

• supply

• control

• human

• shaft

be composed of, be made up of

• insist

• provide

• area

• consist

dig out, hollow out

• complete

• excavate

• hillside

• ensure

space of time between two events or actions

• interval

• internet

• method

• deep

cover which can be removed or lifted

• lip

• lit

• lid

• ground

decide, settle

• interval

• plan

• determine

• plumb

upward or downward slant

• supply

• slope

• deviate

• measure

feasible, workable, applicable

• methodical

• practical

• providal

• territory

choice, option

• builder

• construction

• supplementary

• alternative

review, overview, statistical study

• downward

• survey

• approximate

• plan