20.Tell John not to leave the house unless he that the lights .
A.will make sure, turn off B.makes sure, are turned off
C.will make sure, will turn off D.makes sure, will be turned off
19.Mrs. Brown is so about her housework that few servants want to work for her.
A.skillful B.neat C.particular D.special
18.After you have used the dictionary, please just put it back it belongs.
A.to whom B.to which C.what D.where
17.Now, boys, I’ll the story where I stopped yesterday.
A.take over B.take on C.take in D.take up
16.It is usually not quite cold in this area in March, but sometimes temperature be very low.
A.should B.must C.can D.shall
15.Jack was once a common name, , I think, that is seldom chose nowadays.
A.it B.one C.who D.which