The old scientist devoted most of his time ___________ the space science.
#63172
A
develop
B
to developing
C
to develop
D
developing
推荐题目
They had a wonderful time _______
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A
chating on the Internet
B
chatting on the Internet
C
chating in the Internet
D
chatting in the Internet.
The girl stopped________ but she________ nothing.
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A
to listen; hear
B
to listen; heard
C
hearing; heard
D
listening; heard
Tom isn't good at _______ Japanese.
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A
speak    
B
tell
C
speaking
D
telling