--_______ do you usually go to work?
--I often ride a bike.
| A．What | B．How | C．When | D．Where |
-- _______ teaspoons of salt do we need? --Two.
| A．How | B．How much | C．How many | D．How many of |
-- _milk do we need ? --Two glasses .
A. How much B, How many C. How often D. How far
Cut up these apples and pears and then .
| A．mix up it | B．mix up them | C．mix it up | D．mix them up |
I think there will be _____ people and ______pollution.
| A．less, fewer | B．less, more | C．fewer, less | D．fewer, fewer |
It may take _________ years to make such robots .
| A．hundred of | B．two hundreds | C．hundreds of | D．hundred |