I can’t remember __________ you started to do the work.
A when it was that B when was it that
C it was when D that it was when
______ is even more important is ______ as the earth cooled down, water began to appear on its surface.
A. What, that B. That, what C, That, that D. What, what
After the new technique was introduced, the factory produced ________ cars in 2009 as the year before.
| A．as twice more | B．as many twice | C．more than twice as many | D．twice more than as |
Rather than ______ the plane all the way, they decided _______ to Vancouver.
| A．taking, flying | B．take, to flying | C．take, to fly | D．to take, to fly |
He has no money nor friends here. That’s why he ______ sleep in the street.
| A．must | B．has to | C．should | D．may |
It was said ____that was _____ he succeeded in running his business.
| A．that, what | B．that, that | C．what, how | D．that, how |