--- I really don’t know how ________ this problem.--- Let me see.
Look ! A boat is passing ________the bridge .
He set off _______such a hurry that he left the ticket at home .
.How long have you stayed here ? ______two days . A, For B. In C. By D. Since
Paul has ______friends except me , and sometimes he feels lonely.
The box is ______heavy for the girl ____carry .