问题
选择题
(2013·长沙高考模拟)I ________ him in time, otherwise he would have fallen off the bike.
A．had supported
B．supported
C．have supported
D．support
答案
答案：B
B 句意：我及时扶住了他，否则的话他就从自行车上摔下来了。support这个动作发生在过去，因此用一般过去时。
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