— Have you been here before?
— Yes. This is the third time that I ______ to Shanghai.
| A．come | B．came | C．have come | D．had come |
Having retired from business, he now _______ himself _______ his garden.
A drowns ; to B. involves; to C. occupies ; with D. abandon ; with
The seals were stranded（搁浅）on the Rhode Island beaches,_____ they were rescued last year.
| A．in which | B．from which | C．from where | D．from there |
He, a Nobelist, made great ______________ to researching in this area.
| A．encouragements | B．constitutions | C．breakthrough | D．contributions |
What I advised was that he _______ physical exercise early in the morning.
| A．would do | B．had done | C．do | D．did |
I enjoyed the TV series very much. I wish I _______ the book from which it was made.
| A．have read | B．had read | C．should have read | D．read |