---What do you think of my plan of going to Kunming this summer?
--- I quite agree. It can’t be _________.
| A．good | B．better | C．bad | D．worse |
________is dangerous for us to swim in the river alone.
A. It B. That C. This
Dear students, please read every sentence carefully. The more _____ you are, the______ mistakes you'll make.
A. careful; fewerB. careful; less C. carefully; fewer
______ trees were cut down. And many birds lost their home.
A. Two thousandsB. Thousand of C. Thousands of
She likes reading. She usually________ some books from the library.
A. buys B. lends C. borrows
In the past few years there _________great changes in my hometown .
A. have been B. were C. had been