230. The little boy likes plane models very much. He wants to be a _______and fly a plane into the sky when he grows up.
-- We could invite John and Barara to the Friday night party. --Yes, ____? I’ll give them a call right now.
Try ___ she might, Sue couldn’t get the door open.
I’m sorry I didn’t phone you, but I’ve been very busy ___ the past couple of weeks.
The two girls are so alike that strangers find ____ difficult to tell one from the other.
It ___ be the postman at the door. It’s only six o’clock.