Jack, your father has gone out without this umbrella!—Well, take it easy. _________ he comes back for it.
If you ______go,at least wait until the rain stops.
Afer class, I play ping-pong with my classmates.
There are ________ people in the supermarket. It’s so crowded.
Which of the two T-shirts will you take?—I’ll take ___, one for my father, the other for myself.