เรื่อง TENSE อะครับ
ถ้ามีคำอธิบายด้วยยิ่งดีเลยครับ -.-
1. We realized when we got there that we.......................... .
a. shouldn't go
b. needn't have gone
c. mustn't have gone
d. didn't have to go

2. "Why does ho have to work very hard?"
"So that he......................to buy a new car."
a. is able
b. was able
c. will be able
d. has been able

3. "A burglar stole my T.V. last night."
"You ought...................it to the police immediately"
a. have reported
b. to report
b. report
d. to have reported

4. He..........................to the last meeting, but he didn't.
a. must have gone
ิb. should have gone
c. would go
d. had gone