–You’ve got a stomachache? But we ate at the same place. How come my stomach is fine? --You have an iron stomach! Mine isn’t ___ strong.
We didn't know you were in trouble at that time, ________ we would have given you a hand.
______ surprised the family most was ________ the girl played basketball very well.
_______ in the jungle, the explorer had little hope to find his way out.
Many students urged that the school readingroom ________ open during the vacation.
The thief turned the whole house ________ looking for money.