35．Fall____ , the swallows have gone to the south.

A．coming

B．having come

C．come

D．comes

34．Everyone dislikes____ at before others.

A．to laugh

B．laughed

C．laughing

D．being laughed

33．Let' s hurry. I' m afraid she ____for us at home.

A．must be waiting

B．may be waiting

C．must wait

D．may wait

32．____deep down in the earth for thousands of years, the dead forest has rotted away and become coal.

A．Buried

B．Burying

C．Having buried

D．Having been buried