Earth is believed ______ by an object the size of Mars at some point in the distant past before its surface cooled．
#96481
A
to be hit
B
to have hit
C
to have been hit
D
to hit
推荐题目
Lily’s mobile phone was left in a taxi accidentally, never ______ again.
#96886
A
to find
B
to be found
C
finding
D
being found
The managers discussed the plan that they would like to see___________ the next year.
#92355
A
carry out
B
carrying out
C
carried out
D
to carry out
Paul doesn’t have to be made ____. He always works hard.
#97004
A
learn
B
to learn
C
learned
D
learning
When to a certain temperature,water can be turned into steam.
#98088
A
heating
B
being heated
C
heated
D
to heat
The shop owner welcomed all the guests with a __________ smile.
#97356
A
practice
B
practise
C
practical
D
practiced