— Our food will _______. Hurry to get help from the nearby villagers.— No need. It will last us for as long as two weeks.
I won’t call you ________ something unexpected happens.
The foreign guests, ____ were government officials, were warmly welcomed at the airport.
He is writing a letter______ a pen that I have never seen before.
________ the boy didn't take medicine made his mother angry.
I don’t know ________ is in charge of English department.