It hasn't been made clear ________ the new underground line is to be open to traffic.
| A．when | B．that |
| C．what | D．where |
He ______ have finished his work; otherwise, he wouldn’t be enjoying himself by the seaside.
| A．should | B．must | C．need | D．can |
About 110 million people moved to this city. The population is ______ as ten years ago.
| A．as twice large | B．twice as large | C．as many twice | D．twice as many |
— Do remember to take this medicine three times a day with warm boiled water.
— _________.
| A．Put it | B．Made it | C．Got it | D．Taken it |
. I tried to call on you last week , but your dog simply ____ not let me come through the gate.
| A．could | B．would | C．might | D．should |
To read newspaper before going to bed seemed to me a rule ____.
| A．to never break | B．never to have broken |
| C．never to be breaking | D．never to be broken |