Travelling in space has been made __________ possible with the development of science and technology.
#101472
A
that
B
/
C
it
D
this
推荐题目
---Did you write to Mary last month?  --No ,but I’ll ____ her over Christmas days.
#104576
A
be seen
B
be seeing
C
have seen
D
have been seeing
In the past ten years, the ____mountain climber ____ a lot from his own adventurous _______
#102427
A
experienced; experienced; experience
B
experience; experienced; experiences
C
experienced; has experienced; experiences
D
experience; has experience; experience