The Russian rocket designer has died. For many years, he ______ as an important assistant to the father of Soviet space program.
#101576
A
serves
B
was serving
C
served
D
has served
推荐题目
— I heard they went skating in the mountains last winter. — It _____ true because there was little snow there.
#104884
A
may not be
B
won’t be
C
couldn’t
D
mustn’t be
The warning of the storm, ______ over the radio and on TV, spread quickly through the province.
#100755
A
broadcasting
B
having broadcast
C
broadcast
D
to be broadcast
They ________ to go shopping in the downtown district, but they cancelled it because of a hard rain.
#99209
A
had intended
B
intended
C
have intended
D
were intending
It is reported that China will not buy the Euro debt until some thorough research ______.
#102141
A
will be done
B
had been done
C
has been done
D
will have been done