Exercise 2. Complete the correct answer A, B, C or D

16. To enable students to have more interactions in online classes, our teachers let us work in ________.

A .divided rooms C. breakout rooms  

B. separated space D. face-to-face  

17. Although the students learn online, they receive both ________ and physical support from their teachers and schools.

A. spiritual B. virtual C. material D. offline

18. Tom really hopes his dream will become a ________ in the future.

A. real B. really C. reality D. realistic

19. Sue wants to go to the supermarket to buy some ________ bulbs.

A. precise B. field C. light D. steam

20. Harry and Tom are trying to ________ the problem with the steam engine.

A. support B. solve C. invent D. benefit