Question

1-) Supply the simple present perfect tense of the verbs in parentheses.
A. Space scientists.......................(study) the moon.
B. We...........................(go) to the zoo many times.
C. That boy.................................(find) his little rocket.
D. My mother........................just........................(drive) to the supermarket.

2-) Put the sentences info the ijterrogative (a) and the negative (b).

The Johnsons have tried to call you since 7 o'clock.
a).............................................................................................
b).............................................................................................

Ann has solved this problem many times.
a).............................................................................................
b).............................................................................................​

Answer 1

1-

a. Space scientists HAVE STUDIED the moon.

b. We HAVE GONE to the zoo many times.

c. That boy HAS FOUND his little rocket.

d. My mother HAS just DROVE to the supermarket.

2-

(a) Have The Johnsons tried to call you since 7 o’clock?

(b) The Johnsons haven’t tried to call you since 7 o’clock.

(a) Has Ann solved this problem many times?

(b) Ann hasn’t solved this problem many times.

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