—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
If the car won’t start, _____ it.
“Which sweater is yours?” “The one _______ No. 9.”
What worried the child most was ______ to visit his mother in the hospital. A. his not allowing B. his not being allowed C his being not allowed D. having not being allowed
What we have said ________ her so happy.
What have we said _______ her so happy?