Question

3. The astronaut is so tired that he for eleven hours.

   A. has been asleep   B. has fallen asleep

   C. has gone to bed   D. has gone to sleep

Answer 1

3. A

3. A 解析：考査现在完成时的用法。

for eleven hours指一段时间，不可以和短暂性动 词连用，be asleep指“睡着”的状态，故选A.