Our professor told us that salt water _____ at a lower temperature than fresh water.
| A．is freezing | B．was frozen | C．freezes | D．froze |
I saw him __ there, __ his clothes and jump into the river.
| A．stand; take off | B．standing; take off | C．standing; taking off | D．standing; took off |
The little girl came in, __ a cake with two __ candles on it.
| A．bringing; lit | B．carrying; lighted | C．brought; lit | D．brought; lighted |
__ English is as important as __ exercise in English.
| A．Spoken; written | B．Speaking; written | C．Spoken; writing | D．Speak; write |
Please excuse my __ in without __.
| A．come; asking | B．coming; being asked | C．to come; being asked | D．coming; asking |
He can’t help __ housework, for he is busy __ for the examination.
| A．doing; preparing | B． to do; to prepare | C．doing; to prepare | D．to do; preparing |