Tom ______ come with us together, but he is not very sure yet.
| A．must | B．may |
| C．can | D．should |
﹣The government is trying to develop winter sports for the 2022 Winter Olympics．（ ）
﹣﹣No wonder people are showing their ______ in them．
A．warmthB．interestC．victoryD．standard
﹣The plane won't take off ______ the thick clouds move away．（ ）
﹣﹣Let's wait patiently for the announcement from the airport．
A．sinceB．thoughC．whileD．until
﹣The living conditions in the countryside have improved greatly in recent years．（ ）
﹣﹣The farmers are living a much ______ life than before．
A．happyB．happierC．happilyD．happiest
﹣You'd better advise him ______ anything out of the window while driving．（ ）
﹣﹣I will．He has to know it's dangerous．
A．not throwingB．no throwing
C．not to throwD．don't throw
﹣Quite a few new laws and rules on food safety ______ into use last month．（ ）
﹣﹣Can you tell me what they are？
A．were puttingB．have been put
C．were putD．put