下列对加点词的解释不正确的一项是（　　）

“How long have you worked on the farm”“____ the end of last year”

Would you please drive ______ My train is leaving.—I’d like to, but safety comes first.

I haven’t received any messages from Sophia for two days. What’s wrong with her Don’t blame her for it She’s busying______ an exam

Please don’t phone him between 1 and 3 pm tomorrowHe ______ a lecture then