31- He wishes he ___________________ (can) learn English well.
32- They ____________________ (watch) a soccer match since three o’clock.
33- Mr. Green always __________________(go) to work by bus last year.
34- Why did the sale of jeans stop ___________________ (grow)?
35- They ___________________ (have) lunch in the cafeteria now.
36- Experiments on animals should ___________________(stop).
37- I wish my parents ____________________ (be) here now.
38- They _____________________ (not go) to the movies last Sunday.
39- Wearing uniforms helps students ____________________ (feel) equal in many ways.
40- Jeans ______________________ (sell) all over the world.
41- She is fond of ___________________ (play) football.
42- Flowers should ___________________ (keep) in warm places.
43-They ____________________ (give) me the letter a few minutes ago.
44- My father _____________________ (watch) TV while my mother was cooking in the kitchen.
45- Miss White ______________________(already / see) Giac Lam pagoda.
46- Malaysia ______________________ (divide) into two regions.
47-This exercise must ____________________(do) carefully.
48- Rice ____________________(grow) in tropical countries.
49- More people started ___________________ (wear) jeans because they became cheaper.
50- Let me _______________ (introduce) myself