网址：http://m.1010jiajiao.com/timu_id_838619[举报]
Many of them ________ been to Russia.
[
A
B
C
D
Why not ________ a rest?
have
has
having
had
Father some bread for breakfast this morning.
A．have
B．has
C．having
D．had
What about ________ a rest ?
[ ]
Tom ________ an accident last night.