He doesn’t know ________ they will plant trees on Saturday or not.
| A．weather | B．whether | C．if | D．that |
The book includes eight novels and two short stories.
A. contains B. adds C. is about
Perhaps it’s going to rain tomorrow.
A. Sometimes B. Maybe C. Often
—He plays basketball so well! Who taught _______?
—He learnt it by _______.
A. him; him
B. himself; him
C. him; himself
Watching TV too much ________bad for you eyes.
A. are B. was C. is
Mr. Wang often says to her child, “You _______ play with fire(火). It’s dangerous.”
A. mustn’t
B. had better
C. needn’t