It is reported that in our country cities __________ heavy air pollution that is 30 percent above the national standard or higher should try to meet standards by 2030.
We had wanted to come to see him, but we ____ no time.
We had hoped that you would be able to visit us, but you _____.
We had hoped to catch the 10:20 train, but _____ it was gone.
— Oh, I ______ where he lives. — Don’t you carry your address book? No, I ______ to bring it.
“I _____ his telephone number.” “I have his number, but I ____ to bring my phone book.”