I rang you at about ten o’clock, but there was no reply. – Oh, that was probably ________ I was seeing the doctor.
Please remain ______; the winner of the prize will be announced soon.
Seeing the happy of lovely children playing in the park, I’m full of joy and confidence in the future of our country.
Would you please send _____ a doctor?Mygrandfather is ill.[ ]
Can you tell me ________ get to the chemistry lab ?