The door ．Something has gone wrong with it．
| A．won’t lock | B．won’t be locked |
| C．can’t lock | D．isn’t locked |
His failure in the experiment suggested that he ________ his teacher’s proper instructions.
| A．should not have followed |
| B．should not follow |
| C．mustn’t have followed |
| D．hadn’t followed |
Professor Hawking stepped into the office I knew that there was no hope.
| A．Unless | B．Now that |
| C．Although | D．The moment |
Usually children are allowed to ___________ when they are six years old.
| A．attend school | B．attend the school | C．join school | D．join the school |
.Our team was ahead during the first half, but we _____ in the last ten minutes.
| A．were won | B．were lost | C．were beaten | D．won |
It is the first time that I ＿＿＿ this kind of moon cake.
| A．enjoyed | B．have enjoyed |
| C．enjoy | D．enjoying |