Chia các động từ trong ngoặc theo 1 trong 4 thì sau: Thì quá khứ đơn; quá khứ hoàn thành; hiện tại đơn và hiện tại tiếp diễn:
1) When the old lady (return) to her flat she (see) at once that burglars (break) in during her absence, because the front door (be) open and everything in the flat (be) upside down.
2) The burglars themselves (be) no longer there, but they probably only just (leave) beacuse a cigarette was still burning on an ornamental table.
3) Probably they (hear) the lift coming up and (run) down the fire escape.
4) They (help) themshelves to her whisky too but there (be) a little left, so she (pour) herself out a drink.
5) She (wonder) if they (find) her jewellery and rather (hope) that they had.
6) The jewellery (be given) her by her husband, who (die) some years before.
7) Since his death she (not have) the heart to wear it, yet she (not like) to sell it.
8) Now it (seem) that fate (take) the matter out of her hands; and certainly the insurance money would come in handy.
9) I (put) the £5 note into one of my books; but next day it (take) me ages to find it because I (forget) which book I (put) into.
10) A woman (come) in with a baby, who she (say) just (swallow) a safety pin.
11) I (think) my train (leave) at 14.33, and (be) very disappointed when I (arrive) at 14.30 and (learn) that it (just) leave.
12) I (find) later that I (use) an out-of-date timetable.
13) He (park) his car under a No Parking sign and (rush) into the shop. When he (come) out of the shop ten minutes later the car (be) no longer there.
14) He (wonder) if someone (steal) it or if the police (drive) it away.
15) It (be) now 6 p.m; and Jack (be) tired because he (work) hard all day.