Please turn off the stove. The water ________ for more than fifteen minutes. A. is boiling B. was boiling C. has been boiling D. will be boiling
Please turn off the stove. The water ________ for more than fifteen minutes.
A. is boiling B. was boiling C. has been boiling D. will be boiling
A. is boiling
B. was boiling
C. has been boiling
D. will be boiling