I was out of town at the time, so I do not know exactly how it ______.
A: was happening
B: B．happened
C: C．happens
D: D．has happened
A: was happening
B: B．happened
C: C．happens
D: D．has happened
举一反三
- I was out of town at the time, so I do not know exactly how it______. A: [A] was happening B: [B] happened C: [C] happens D: [D] has happened
- What _____ if I drink this? A: happens B: is happening C: will happen D: is happened
- “I haven’t heard from Henry for a long time.” “What do you suppose ______ to him?” A: was happening B: to happen C: has happened D: had happened
- I don’t know what has happened, and don’t know what to do next. A: 正确 B: 错误
- What do you imagine ______ to Jim for the last few weeks? A: happened B: has happened C: happening D: to happen