Don’t worry too much about ______ mistakes. They are ______ natural part of learning.
A．/; a B．the; / C．/; the D．the; the
—I’m going to Syria. Would you please tell me about your experiences there?
—________. Let’s discuss it over dinner.
A．Never mind B．Go ahead
C．By all means D．It just depends
In today’s competitive economy, ________ everyone is trying to do more with less, you’ve got to figure out a way to profit from the very beginning.
A．which B．that C．how D．where
The little boy still needed another 20 dollars to do with the things ________.
A．remained to be settled B．remaining to be settled
C．remained to settle D．remaining to settle
When asked what they would volunteer to do, ________ said they were willing to do something they could.
A．half of these B．half of which
C．half of whom D．half of them
With ________ successful launch of the first space lab module Tiangong-1, China’s space dream has taken ________ step closer to reality.
A．the; a B．不填; a C．a; the D．the; 不填
