He was driving to work. (long duration) He called me. (short duration)
A. When he called me, he was driving to work.
B. While he called me, he was driving to work.
C. While he was calling me, he was driving to work.

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Modals in the Past - Speculation and Deduction › ViewSkilled professionals _________ easily left their home countries without a compelling reason.
A. can’t have
B. must have
Tenses › View
. Formulate a question in the present continuous tense.
A. What are you?
B. What are you doing?
C. What will you do?
D. What did you do?
Idioms › View“Out of order” means it ___.
a. is untidy
b. doesn’t work
c. is unavailable
Reported Speech › View
“I need to get a loan to buy a car.”
A. He said he needed to get a loan to buy a car.
B. He said he will need to get a loan to buy a car.
C. He said he would need to get a loan to buy a car.
D. He said he had needed to get a loan to buy a car.