D) 'Each other'
A) We tried our best in the examination.
B) We have not thought it possible.
C) I will see guide you through the manual later.
D) It is happening right now as we speak.
A) He prefers goat meat to beef.
B) She has informed her parents about the issue.
C) It rained cats and dogs last night.
D) We are serving the guests accordingly.
A) The cake is being baked by her.
B) The caked was baked by her.
C) The cake has being baked by her.
D) The cake has been baked by her.
A) The crops have been harvested by them.
B) The crops was harvested by them.
C) They are harvesting the crops.
D) The crops were being harvested by them.
A) The new vaccine was tested next week.
B) The new vaccine has been tested next week.
C) The new vaccine will be tested next week.
D) The new vaccine are being tested next week.
A) didn't they?
B) aren't they?
C) haven't they?
D) weren't they?
A) do I?
B) haven't I?
C) did I?
D) didn't I?
A) shall we?
B) shouldn't we?
C) aren't we?
D) won't we?
A) didn't we?
B) would we?
C) isn't it?
D) were we?
A) does he?
B) isn't he?
C) can't he?
D) doesn't he?