I don't really work here．I ________ until the new secretary arrives．

A．just help out

B．have just helped out

C．am just helping out

D．will just help out

－Are you still busy?

－Yes, I ________ my work, and it won't take long．

A．just finish

B．am just finishing

C．have just finished

D．am just going to finish

Since I won the big prize, my telephone hasn't stopped ringing．People ________ to ask how I am going to spend the money．

A．phone

B．will phone

C．were phoning

D．are phoning

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

A．work

B．working

C．is working

D．are working

Send my regards to your lovely wife when you ________ home．

A．wrote

B．will write

C．have written

D．write

Look at the timetable．Hurry up!Flight 4026 ________ off at 18∶20．

A．takes

B．took

C．will be taken

D．has taken

－It took me ten years to build up my business, and it almost killed me．

－Well, you know what they say, ________．

A．There is no smoke without fire

B．Practice makes perfect

C．All roads lead to Rome

D．No pains, no gains

Scientists think that the continents ________ always where they ________ today．

A．aren't; are

B．aren't; were

C．weren't; are

D．weren't; were

Nowadays, a large number of women, especially those from the countryside, ________ in the clothing industry．

A．is working

B．works

C．work

D．worked

The father as well as his three children ________ skating on the frozen river every Sunday afternoon in winter．

A．is going

B．go

C．goes

D．are going