Question

1)When I returned to work after maternity leave,I was sent on a course because I had difficulty ____ up with the latest changes in the regulations.
A) making B)living C)keeping D)putting
2)I guess no one mentioned the side effects of the drug to you,____?
A) did they B) had they C) didnt they D) dont they
3)To save energy, appliances shouldnt be left___ they ought to be switched off.
A)logged on B)at work C)on standby D) out of order
4) All the employees were suddenly ___ after the industry collapsed.
A) dropped B) FIRED C) rejected D)retired

Answer 1

1) When I returned to work after maternity leave, I was sent on a course because I had difficulty keeping up with the latest changes in the regulations.

2) I guess no one mentioned the side effects of the drug to you, did they?

3)To save energy, appliances shouldn't be left on stand by they ought to be switched off.

4) All the employees were suddenly fired after the industry collapsed.

Explanation:

• The correct form of the verb must be used to show the tense of the sentence.

• The form of the verb depends on the word that is before the verb and the subject of the sentence and the tense.

• The second form of the verb is mostly used in the Past tenses, whereas the first forms of the verb are used in Present tenses.

• And in continuous sentences "ing" is added to show the action is still going on.