单项选择题

(It is) (in) his spare time (when) Robert teaches (himself) English and Japanese.

A．It is
B．in
C．when
D．himself
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I (am looking) forward (to) (receive) your letter! she said (happily).
A．am looking
B．to
C．receive
D．happily
单项选择题
(Having) (returned) from Berlin, he received no telephone (call), (neither).
A．Having
B．received
C．call
D．neither
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