Nobody knows how people first came to these islands. They _____ from South America on rafts.
#87576
A
ust have sailed
B
an sail
C
ight have sailed
D
hould have sailed
推荐题目
Look at the trouble I’m in. If only I your suggestions.
#87504
A
followed
B
would followed
C
had followed
D
should followed
. Mr. Green requires that the students ______ cheat in any exam.
#88188
A
should
B
don’t
C
wouldn’t
D
not
Being examined twice a year，whether it is a car or a bus or a truck，is the rule that every driver _______obey in this city.
#87482
A
shall
B
can
C
ought to
D
need
My little son _____ out alone at night.
#88107
A
dares not go
B
dares not to go
C
dare not to go
D
doesn’t dare to go