There______ a number of natural mysteries in the world that even make scientists ______.
| A．exists; confusing | B．are existed; confused |
| C．exist; confused | D．exist; confusing |
_____ I entered, he was _____ in his book and didn’t notice me.
| A．When; devoted | B．While; absorbed |
| C．When, absorbed | D．While, devoted |
He _____ advantage of her kindness and borrows money too often.
A. makes B gets C. gives D. takes
What he said just now _____ me of that American professor.
| A．mentioned | B．informed | C．reminded | D．memorized |
She______ the film. She knew nothing about it.
| A．can’t see | B．can’t have seen |
| C．must see | D．mustn’t have seen |
I wish you______ go with me tomorrow.
| A．will | B．would | C．shall | D．can |