16) He had hardly put down the phone when his wife rang back.
→ Hardly
17) She stayed in bed because of her sickness.
→ Because
18) You didn’t work hard. You got bad marks.
→ If
19) The boy can’t wear the shirt because it’s very tight.
→ The shirt is so
→ The shirt is too
20) Both Peter and Mary enjoy scientific expeditions.
→ Mary enjoys scientific expeditions, and so
→ Peter enjoys scientific expeditions, and Mary
21) Mike is a more careful driver than his brother.
→ Mike drives
22) She worked hard so she got high wages.
→ If
23) Unless you phone me tonight, you won’t get any information.
→ If
24) Tom cried a lot when he was a child.
→ Tom used to
25) Let’s go to the seaside this summer.
→ Why don’t we
→ How about
→ I suggest
26) Many people said that our team won the gold medal by chance.
→ Our team was
27) You will catch a cold if you don’t put on your coat.
→ Unless
28) Both he and she couldn’t afford to buy a car.
→ He couldn’t afford to buy a car, and neither
→ He couldn’t afford to buy a car, and she
29) Despite the noise, the children slept well.
→ Although
30) Because of being tired, he didn’t walk to the station.
→ Because