For many years, ____ animals for carrying food and other supplies from one area to another has been a means of living in Xinjiang Autonomous Region .
#93691
A
trained
B
training
C
having trained
D
to have trained
推荐题目
A hearty laugh relieves physical tension, ________ your muscles relaxed for over half an hour.
#88798
A
to leave
B
left
C
leaving
D
leave
— I must apologize for _____ ahead of time. — That’s all right.
#93958
A
letting you not know
B
not letting you know
C
letting you know not
D
letting not you know
Victor apologized for _________ to inform me of the change in the plane.
#94153
A
his being not able
B
him not to be able
C
his not being able
D
him to be not able
Lady Gaga has put off her concerts because of the difficulties ______ by the ongoing strikes.
#92743
A
causing
B
to be caused
C
caused
D
to cause
After describing the planned improvements， she went on _____ how much they would cost.
#98758
A
to explain
B
explaining
C
to be explaining
D
having explained