This is not an economical way to get more water; ____, it is very expensive.
A．on the contrary B．on the other hand
C．on the whole D．on earth
_____ Barbara Jones offers to her fans is honesty and happiness.
A．Which B．What C．That D．Whom
The most delicious cake in the world____ by mom. Please wait an hour to enjoy it.
A．makes B．is made C．is being made D．is making
It can’t be a(n) _____ that four jewelry stores were robbed in one night.
A．accident B．coincidence C．incident D．chance
Distance learning is being _____ in several countries to help children in remote rural schools obtain higher education.
A．attended B．adopted C．adapted D．admitted
But for their common interests, they_____ cooperated so smoothly in the investigation of the case.
A．could have B．will not have C．could not have D．have not
