Miss Alice can’t help ________ the house because she is busy making a cake in the kitchen．

to clean

cleaning

cleaned

be cleaned

They are talking so warmly and it looks ________ they had been old friends．

even if

if

as though

as

During these days I am looking forward to ________ my sweet heart, for I miss her very much．

hear

hearing

hear from

hearing from

John, look at the time．________ you play the piano at such a late hour?

Must

Can

May

Need

Tom, you ________ leave all your clothes on the floor like this．

wouldn’t

mustn’t

needn’t

may not

Professor Smith, along with his assistants, ________ on the project day and night to meet the deadline．

work

working

is working

are working

I’d like to arrive 20 minutes early ________ I can have time for a cup of tea．

as soon as

as a result

in case

so that

My classmate Jack ________ without saying good bye to them, for he is a polite boy．

mustn’t have left

may not have left

shouldn’t have left

can’t have left

Why ________ you always interrupt me when I am talking with my classmate? It is quite annoying．

must

shan’t

can’t

needn’t

I ________ show you around this beautiful school, for it is my duty, but I’m not sure whether I will have time this Sunday．

should

might

would

could