923.Look at the timetable. Hurry up! Flight 4026 ________ off at 18:20.

A.takes

B.took

C.will be taken

D.has taken

924.You look very tired.______ well last night?

No, not really. I'm tired out now.

A.Do you sleep

B.Were you sleeping

C.Did you sleep

D.Had you slept

923.答案是A;

飞机，火车等的时刻表，习惯用一般现在时表示将来。

924.答案是C;

从题中的last night得知应用一般过去时。