We are very slowly improving the state of the environment by reducing the level of CO2 we produce.
A.
carefully
B.
gradually
C.
luckily
D.
happily
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【单选题】Work in pairs. Read each phrase and decide who could say it - the person who makes the call (C) or the person who receives the call (R)? 1 Can I help you?
【单选题】Read each phrase and decide who could say it - the person who makes the call (the caller), or the person who receives the call (the receiver)? 1. Can I help you?