There will be more and more robots going into people's homes．
．We might be able to leave all the chores to them．（ ）
A．Not reallyB．No way
C．You're kiddingD．I hope so
Li Ying cleans her room the weekend．（ ）
| A． |
at |
B． |
for |
C． |
in |
﹣ you swim？
﹣Yes， I can．（ ）
| A． |
Must |
B． |
May |
C． |
Can |
Sally knocked on the door but answered．（ ）
| A． |
somebody |
B． |
nobody |
C． |
everybody |
She my sister， Meimei．（ ）
| A． |
are |
B． |
is |
C． |
am |
There are _____ months in a year．December is the _____ month of a year．（ ）
| A． |
twelve； twelve |
B． |
twelfth； twelfth |
| C． |
twelve； twelfth |
D． |
twelfth； twelve |