Had it not been for the police’s help, Peter his bicycle yesterday afternoon.
| A．could not find | B．could not have found | C．didn’t find | D．hadn’t found |
Before a problem can be solved, it must be obvious ______ the problem itself is.
A. what B that C which D why
It is the most instructive lecture that ________since I came to this school.
A attended B had attended C am attending D have attended
Do you wake up every morningenergetic and ready day?
A feel B to feel C feeling D fell
No one ________ be compared with Yao Ming in playing basketball.
A can B need C must D. might
In 1492, Columbus_______ on one of the Bahama Islands, but he mistook it for an island of India.
A lands B landedC has landed D had landed