With the rapid progress in high technology， 5G_____ around most parts of China in the near future．（ ）
| A． |
is used |
B． |
is using |
| C． |
will use |
D． |
will be used |
Buses stop when the traffic lights turn red．（ ）
A．canB．mayC．must
room looks very clean．（ ）
A．Bob and Dave'sB．Bob's and Dave's
C．Bob's and Dave
﹣ dictionary is this？It's very nice．
﹣I think it is Mary's．（ ）
A．WhoB．WhoseC．Whom
They often have three meals day． They have dinner at 6：30 pm every day．（ ）
A．a；aB．a；theC．a；不填
All the classmates enjoyed the cake _________I made at the party． It was really delicious（ ）
A．thatB．whoC．what