Question

51) My mother__________ for ten kilometres every morning. (walk)
52) The principal ______ just gone to the airport to receive the V.C. (had, has, have)
53) It is 4 o’clock. The principal ______________ a meeting since 2 o’clock. (hold)
54) Heat __________(expand) and cold_________ (contract).
55) Time and tide __________for no man. (wait).
56) John usually _______ coffee in the morning, but today he _______tea. (drink)
57) He _________a novel since October last, and he is about to finish it. (write).
58) If Romsy _______ hard, she will pass. (work)
59) The child ___________from pneumonia since last week. (suffer).
60) These days most people ____________ email instead of writing letters. (use)
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Answer 1

1. walks
2. has
3. is holding
4. expands and contracts
5. willnot
6. drinks dont drink
7. is writing
8. works
9. is suffering
10. are using

i don't know whether it is right or not

Answer 2

Explanation:

51.my mother walk for ten kilometers every morning.

52.the principal had just gone to the airport to receive the v.c.

53.it is 4o'clock .the principal hold a meating since 2o'clock .

54.heat expand and cold contract