A new ______bus service to Tianjin Airport started to operate two months ago .
| A．regular | B．physical | C．usual | D．former |
The patient’s son asked the doctor the question________his father could survive the big operation.
| A．whether | B．if | C．that | D．what |
The children went home from the grammar school，with their lessons ____for the day.
| A．finishing | B．finished | C．had finished | D．went finished |
At the railway station，the mother waved goodbye to her daughter until the train was________.
| A．out of sight | B．out of reach | C．out of order | D．out of place |
is not yet decided.
| A．Whether he will write the book | B．Whether will he write the book |
| C．If he will write the book | D．If will he write the book |
Along with the letter was his promise _____ he would visit me this coming Christmas.
| A．which | B．that | C．what | D．whether |