__ I do not know what I ___________ without the suitcase you lent me. __ Glad to have been of some help to you.

Many students can’t have fun _____________ after-school activities because they have much homework _____________.

下列各句中，没有语病的一句是

Burns are called first，second or third degree burns，which layers of the skin are burned.

The shy girl felt_______ and uncomfortable when she could not answer her teacher’s questions.[ ]