Had they known what was coming next, they ________ second thoughts.
| A．may have |
| B．could have |
| C．must have had |
| D．might have had |
Don't expect too much of him ; he is _______ a child.
| A．at all | B．at will |
| C．at first | D．at best |
-Maria, the summer vacation is approaching. How shall I do my travel?
-It's your money, your time-spend it how you want.＿＿＿
| A．So what? | B．Count me out. |
| C．Who cares? | D．It all depends. |
Had he not come an hour earlier, he＿＿＿the secret that his mother was always there.
| A．must never find | B．must never have found |
| C．would never find | D．would never have found |
From the moment babies are born, parents are helping them to be released into the world, not to＿＿them or to control their lives for the rest of life.
| A．hold on to ’ | B．put up with |
| C．give in to | D．break up with |
An individual human existence should be like a river-small at first, narrowly contained within its banks, and＿＿＿passionately past rocks and over waterfalls.
| A．to rush | B．rushing |
| C．rushed | D．rush |