My son prefers us to email each other once a weekspend half an hour on the phone every nig

My son prefers us to email each other once a week spend half an hour on the phone every night.
A. other than
B. rather than
C. otherwise
D. instead of

A. other than(答案→)B. rather than C. otherwiseD. instead of解析：prefer to do rather than do 喜欢…而不喜欢…。注意rather than后接动词原形。我的儿子喜欢我们彼此每周发一次电子邮件而不喜欢每晚花费半小时打电话。

我好好复习下