Must the children get up at six tomorrow morning？
No， they_____． Let them have a good sleep on weekends．（ ）
A．can'tB．needn'tC．mustn'tD．may not
Vivian will take her daughter to the amusement park_____she gets the tickets．（ ）
| A． |
if |
B． |
until |
C． |
although |
D． |
unless |
Which club do you prefer to join，the chess club_____the dancing club？（ ）
| A． |
so |
B． |
but |
C． |
or |
D． |
for |
﹣Tom，_____here to carry the luggage upstairs for me，will you？ ﹣All right．（ ）
| A． |
come |
B． |
came |
C． |
coming |
D． |
to come |
According to the traffic law，children under 12_____ride bicycles on the road．（ ）
| A． |
won't |
B． |
wouldn't |
C． |
needn't |
D． |
mustn't |
Doctors tell us_____our hands before and after every meal．（ ）
| A． |
wash |
B． |
washed |
C． |
washing |
D． |
to wash |